Swıtzerland Auctıon Stamp

epa02166018 A David Feldman employee shows what is believed to be the world's most expensive stamp, the Swedish 'Treskilling Yellow - Error of Color', at David Feldman Philatelists auctioneers in Geneva, Switzerland, 20 May 2010. Treskilling Yellow is estimated to be worth 1.5 - 2.0 million Euro. It will be sold on 22 May 2010 in Geneva. The first stamp of Sweden issued in 1855 was printed in green, but 30 years later one example was found in yellow. The stamp was discovered by a Swedish schoolboy on a letter of his grandmother in 1885sold to a stamps dealer for 7 crowns.  EPA/MARTIAL TREZZINI