Portal:Philately/Stamp of the month archive/11

The "Treskilling" Yellow, or 3 skilling banco error of color, is a postage stamp of Sweden, and as of 2004 the most valuable stamp in the world. To date no other example has been found, so is most likely the only one in existence.

The 3-skilling banco value of the first postage stamps of Sweden, issued in 1855, was normally printed in a blue-green color, while the 8-skilling was printed in a yellowish orange shade. In 1886, a young collector named Georg Wilhelm Baeckman was going through covers in his grandmother's attic, and came across one with a 3-skilling stamp printed in the yellowish orange shade of the 8-skilling.

Each time it has been sold it has set world records. In 1984 the stamp made headlines when it was sold by David Feldman for 977,500 Swiss francs. A 1990 sale realised over one million US dollars and in 1996 it sold again for 2,500,000 Swiss francs.