Some hundred and fifty years ago a Swedish schoolboy named Georg Wilhem Baeckman found a three skilling yellow stamp in his grandmother’s garbage. Normally the 3 skilling was green, and the boy’s irregularly colored discovery is the only one of its type ever to have been found. Known as the Treskilling Yellow, it will be auctioned later this month in Geneva, where it’s expected to sell for over $7 million.
Although Georg only received 7 knoner (91 cents) for his discovery, the Treskilling Yellow is, by weight, probably the most valuable item in the world. Through the years it has changed hands many times, setting records along the way. Probably the result of a printing error, it last sold to an anonymous collector for almost $2.5 million. The Swiss auction house of Daniel Feldman will handle the latest sale, where another record is anticipated.
Read more at The Telegraph.

