In 2009 a set of all three inverts made $199,000 at auction, with the 1c reaching $19,000. A set of blocks of four of each of them made a total of $1,146,000 in the same sale. This stamp has a ...

Value: $275,000 A mint green stamp from the U.S. Pictorial stamp issue ... is extremely rare because it was produced during a phase of currency reforms. It was only available for a short time ...

Stamp duty thresholds will revert to their original levels in April, which could add thousands to the cost of moving house.

Factors such as printing errors, limited production, and historical significance all contribute to a stamp’s value. From historic European issues to prized American rarities, here are 10 vintage ...