LONDON.- Sotheby’s, announces the sale of the first work by abstract expressionist post-war artist Nat Tate ever to appear at auction as part of the forthcoming Modern & Post-War British Art Sale, on Wednesday 16th November 2011. The drawing, estimated at £3,000-5,000*, is one of only 18 works by the artist remaining in existence. The drawing will be publicly exhibited for the first time prior to the auction, and proceeds from the sale will benefit the Artist’s Benevolent Institution. Memorably, in 1998 it was revealed that the art of a good hoax might very well be the hoax of good art, and that Nat Tate was in fact a fictitious figure created by bestselling British author William Boyd in his biography Nat Tate: An American Artist 1928-1960. Grounded in vintage photographs of the unknown (picked up at various junk shops and car boot sales), fake New York galleries with real addresses and a group