The magritte estate

List the magritte estate

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 78 x 58 cm (30renĂ© magritte (after) - les valeurs personnelles (personal values) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any store8' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives paperplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    315 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 60 x 45 cm (23renĂ© magritte (after) - le bouquet tout fait (the ready-made bouquet) lithograph on bfk rives paper plate-signed and numbered from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    208 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 78 x 58 cm (30renĂ© magritte (after) - le pays des miracles (the land of miracles) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any store8' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives paperplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    316 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 60 x 45 cm (23renĂ© magritte (after) - dĂ©calcomanie (decalcomania) lithograph on bfk rives paper plate-signed from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    262 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 78 x 58 cm (30renĂ© magritte (after) - la cascade (the waterfall) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any store8' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives paperplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    315 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 78 x 58 cm (30renĂ© magritte (after) - le dernier cri (the last word) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any store8' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticityplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runcatawiki’s goal is to make special objects universally available

    315 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 60 x 45 cm (23renĂ© magritte (after) - l'empire des lumières (the empire of light) lithograph on bfk rives paper plate-signed from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeshipped with fedex along with a certificate of authenticityplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papercatawiki’s goal is to make special objects universally available

    209 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 60 x 45 cm (23renĂ© magritte (after) - le maĂ®tre d'Ă©cole (the school master) lithograph on bfk rives paper plate-signed and numbered from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    209 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 30 x 45 cm (11renĂ© magritte (after) - le faux miroir (the false mirror) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    134 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 30 x 45 cm (11renĂ© magritte (after) - la flèche de zĂ©non (zeno's arrow) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawiki7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives paperour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    133 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 30 x 45 cm (11renĂ© magritte (after) - la grande guerre (the great war) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    136 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 60 x 45 cm (23renĂ© magritte (after) - le château des pyrĂ©nĂ©es (the castle of the pyrenees) lithograph on bfk rives paper plate-signed and numbered from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press run7' in) created after the oil on canvas, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives papershipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    205 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & the publisher dimensions 60 x 45 cm (23renĂ© magritte (after) - la grande guerre (the great war) lithograph on bfk rives paper plate-signed from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawiki7' in) created after the oil on canvas, this lithograph was printed and published in in our art-lithographies studio in paris using thick pur chiffon bfk rives paperour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    211 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & the publisher dimensions 60 x 45 cm (23renĂ© magritte (after) - l'empire des lumières (the empire of light) lithograph on bfk rives paper plate-signed from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawiki7' in) created after the oil on canvas, this lithograph was printed and published in in our art-lithographies studio in paris using thick pur chiffon bfk rives paperour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeshipped with fedex along with a certificate of authenticityplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runcatawiki’s goal is to make special objects universally available

    214 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatedry stamps of the magritte estate & adagp dimensions 60 x 45 cm (23renĂ© magritte (after) - souvenir de voyage (memory of a voyage) lithograph on bfk rives paper plate-signed from the edition of 275the lithograph is numbered from the edition of 275, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any store7' in) created after the gouache on paper, this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives paperplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    213 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatecopyright of the magritte succession & adagp dimensions 78 x 58 cm (30shipped with a certificate of authenticity stamped & signed by our company, the worldwide exclusive printer and publisher of renĂ© magritte lithographs sincerenĂ© magritte (after) - la voix du sang (the voice of blood) lithograph on bfk rives paper plate-signed and numbered from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawikiour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website8' in) this lithograph was printed and published in in the art-lithographies studio in paris using thick pur chiffon bfk rives paper100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runcatawiki’s goal is to make special objects universally available

    330 €

  • Charly herscovici, president of the magritte foundation and unique representative of the magritte estatecopyright of the magritte succession & the publisher dimensions 30 x 45 cm (11renĂ© magritte (after) - l'empire des lumières (the empire of light) lithograph on bfk rives paper plate-signed from the edition of 300the lithograph is numbered from the edition of 300, plate-signed by magritte, features the dry stamps of the magritte foundation & adagp and is countersigned in pencil by mrare you interested in this item? this item is up for auction at catawiki7' in) created after the oil on canvas, this lithograph was printed and published in in our art-lithographies studio in paris using thick pur chiffon bfk rives paperour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storeplease click on "respond to advert" (orange button) to get redirected to the catawiki website100 % hand-made in france, from the production of the paper in arches, to the traditional lithographic printing process, one drawing for each different color, one color per press runshipped with fedex along with a certificate of authenticitycatawiki’s goal is to make special objects universally available

    136 €

  • The works stone bridge to the winter estate pieces (complete) in very good condition

    5 €

  • Stone bridge to the winter estatesize: 68cm x 48cm

    5 €

  • Rene magritte ()charly herscovici, president of the magritte foundation (with initial on the same side of the number) dimensions: 44x30 cmrene magritte is one of the most important artist of the 20th as pablo picasso, salvador dali, banksy, willem de kooning, andy warhol or roy lichtenstein in perfect condition, never framedare you interested in this item? this item is up for auction at catawikilithograph on bfk rives vellumour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storenumbered / 300 copies, signed in print lithography made under the control of the succession magritte, authenticated by the blind seal succession, signed on the stone bottom left and hand signed in pencil by mrplease click on "respond to advert" (orange button) to get redirected to the catawiki websitecatawiki’s goal is to make special objects universally available

    166 €

  • The film mixes fact with fiction by using actors to lip-synch words actually spoken by members of dunbar's family and residents from the buttershaw estatedunbar, who wrote the plays 'the arbor' and 'rita, sue and bob too', was hailed as 'a genius straight from the slums' for her unflinching autobiographical portrayals of her upbringing on the notorious buttershaw estate in bradfordoxfam bookshop swanage clio barnard directs this avant-garde docu-drama chronicling the life and legacy of the late bradford playwright andrea dunbarsee oxfam website for delivery information read morethis film catches up with lorraine in the present day and finds her alienated from her mother's family and in prison undergoing rehabwhen she died at age of 29 in , her daughter lorraine, now 29 herself, was just ten years oldas she is re-introduced to her mother's plays and letters, lorraine begins to understand the personal difficulties her mother went through and reflects on their impact on her own life

    5 €

  • Wodehouse's much-loved characters, jeeves and wooster, fully authorised by the wodehouse estatehowever, georgiana is the ward of sir henry hackwood and, in order to maintain his beloved melbury hall, the impoverished sir henry has struck a deal that would see georgiana becoming mrs rupert venablesthis is a pitch-perfect undertaking: proof, almost a century after his debut, that jeeves may not be so inimitable after allbertie, you see, has met georgiana on the cĂ´te d'azuroxfam books & music durham a gloriously witty novel from sebastian faulks using pbertie wooster, recently returned from a very pleasurable soujourn in cannes, finds himself at the stately home of sir henry hackwood in dorsetmeanwhile, peregrine 'woody' beeching, one of bertie's oldest chums, is desperate to regain the trust of his fiancĂ©e amelia, sir henry's tennis-mad daughterfaulks's plot is bang on-messagefaulks captures perfectly both the tone and the spirit of wodehouse's originals'at two memorable moments in jeeves and the wedding bells i did indeed laugh until i criedbertie is more than familiar with the country house set-up: he is a veteran of the cocktail hour and, thanks to jeeves, his gentleman's personal gentleman, is never less than immaculately dressed' matthew dennison, the spectator see oxfam website for delivery information read moreon this occasion, however, it is jeeves who is to be seen in the drawing room while bertie finds himself below stairs - and he doesn't care for it at alllove, as so often, is at the root of the confusionbut why would this necessitate bertie having to pass himself off as a servant when he has never so much as made a cup of tea? could it be that the ever-loyal, spinoza-loving jeeves has an ulterior motive?evoking the sunlit days of a time gone by, jeeves and the wedding bells is a delightfully witty story of mistaken identity, a midsummer village festival, a cricket match and love triumphantjeeves and the wedding bells is a masterpieceand though she is clever and he has a reputation for foolish engagements, it looks as though this could be the real thing

    8 €

  • Lucilla eliot has spent a lifetime making the hampshire estate of damerosehay a tranquil haven for her familybut can she persuade david and nadine to put duty and family honour before love? this hardback is a reprint of the edition first published by duckworth, londonthe light-blue cloth boards are stained and fadedwhen her beloved grandson, david, falls in love with an unsuitable woman, lucilla sees her most cherished ambitions put at risksee oxfam website for delivery information read morethe endpapers are slightly spotted but the page block itself appears to be clean and brightthe jacket is in a poor condition - spotted, torn and chipped on the spine and all edgesoxfam bookshop hexham this is the first book in the classic family saga about the eliots of damerosehayit is complete with its unpriceclipped dustjacket

    29 €

  • Oxfam bookshop cheltenham carriglas is the island estate off county cork where sarah pollexfen goes to live as governess to her wealthy cousins on the eve of the first world warsee oxfam website for delivery information read morehelplessly, sarah watches her cousins lead increasingly isolated and empty lives as if punishing themselves for a past crimeand somewhere in the tranquil garden of carriglas there are secrets waiting to be discoveredwriting in the spectator, anita brookner said, 'trevor is a specialist in brooding regret and a discoverer of past crimeshe is devoted to ireland, to its soft speech and its frequently ugly deeds, and he combines them in a sort of elegy''the silence in the garden' won the yorkshire post book of the year award

    2 €

  • On the wild cornish coast stands the grand estate of penmarric with its stately house, sweeping land and prosperous minessee oxfam website for delivery information read moreit offers wealth and power - but it can also destroy those who seek to become its mastermartic c thurley, annabel leventon and rupert frazer staroxfam bookshop swanage as newall twelve episodes of the bbc period drama series based on the bestselling cornish family saga by susan howatch

    8 €

  • Oxfam bookshop newport when jeffrey scott was found brutally murdered in an empty house, the suspects were ready-made for all of them had a motive in common - the weber estatetommy rankin, called in to tackle a bewilderingly intricate problem, was baffled time and again until his patient, brilliant detection brought to light the design of an almost perfect crimevarious scuffs, marks and discolourationsee oxfam website for delivery information read morered cloth covered boardspencilled annotation and remains of book plate or similar on rear pastedownsmall red annotation to front pastedown, neatly inked initials and date on front endpaperblack text to front and spinewear to edges of boards and top and bottom of spine, which is also discolouredsporadic foxing within text block, which is also lightly but evenly tanned

    48 €

  • The proboard is the perfect switching pad that allows you to write down a word, image, number, prediction or anything else you want on a piece of paper and impossibly change it or secretly switch it!

    29 €

  • Written by and starring ford kiernan and greg hemphill jack (ford kiernan) and victor (greg hemphill) return for series two of 'still game' with their pals from the craiglang estate including local gossip isa, straight-talking shopkeeper navid, and winston, who is seriously in need of some anger-management sessions9 episodes: 'gairden', 'wummin', 'doacters', 'brief', 'tappin'', 'scran', 'shooglies', 'buntin'' and 'dugsee oxfam website for delivery information read more'still game' shows retirement to be the moment when life truly begins' 2 discs, inner case and outer case: all exoxfam bookshop carlisle 2 anamorphic discs

    2 €

  • Offered: renĂ© magritte 1rene magritte les jours gigantesques kunstsammlung nordrhein-westfalen, dusseldorf stapled, 49 ppmagritte et la musique gallery bortier bruxelles images in colour fine condition 2are you interested in this item? this item is up for auction at catawikiwith images in b/w and in colour fine condition, name of owner and blind stamp 4la belle captive la bibliotheque des arts lausanne-paris bound hardcover, 155 ppour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storehet mysterie van de werkelijkheid museum boijmans van beuningen, rotterdam pprichly illustrated in b/w and in colour good condition 3please click on "respond to advert" (orange button) to get redirected to the catawiki websitewith images in b/w and in colour fine condition read morecatawiki’s goal is to make special objects universally available

    52 €

  • Lithograph after the artist renĂ© magritte on tintoretto 250 g paperare you interested in this item? this item is up for auction at catawikiabsolutely limited and exclusive editionour weekly auctions feature thousands of unusual, rare, and exceptional objects you won’t find in just any storesigned on the plateinternational shipping with track & trace in a solid tubepublisher’s coa present and sent with the original workplease click on "respond to advert" (orange button) to get redirected to the catawiki websiterenĂ© magritte, “les amants”packaged with careembossed stamp of the publisher scatawiki’s goal is to make special objects universally availablework in perfect condition, it has never been framed

    48 €

Did not find what you're looking for? Try again

Related searches the magritte estate