The Treskilling Yellow holds the world's record auction sales price for a single postage stamp. The normal three-skilling stamp, was to be green, whereas the eight-skilling stamp was to be in yellow. Due to an unknown error in 1855 the three-skilling stamp was printed in yellow, creating this precious Treskilling Yellow stamp. The only copy of this Treskilling Yellow was discovered by a schoolboy in 1886, while going through his grandparents' attic.

Estimated Price : Undisclosed