Add Yahoo as a preferred source to see more of our stories on Google. Here’s something for serious stamp collectors only. This summer, philatelists will have a chance to snag the rarest US stamp ever: ...

The greatest stamp discovery in modern history is expected to bring $5m to $7.5m We all dream of opening an old book or ...

A block of the world's second official postage stamp is going up for auction in May, and is expected to fetch millions of ...

The postage stamp that started it all is going under the gavel. The coveted 18th-century rarity, known as the Penny Black, was the world’s first postage stamp and represents the very dawn of social ...

A Christmas stamp over 50 years old could be sold for over £500 thanks to an unusual printing mishap. The three pence stamp depicting an angel from Heaven – one of just 24 unused examples in existence ...

Here’s something for serious stamp collectors only. This summer, philatelists will have a chance to snag the rarest US stamp ever: the 1868 one-cent “Z-grill.” Interested? It’ll cost you (more than) a ...