A rare Benjamin Franklin Z-grill stamp from 1868 could fetch as much as $5 million once it hits auction in New York. There are only two known stamps in existence.

These are the most valuable ... The only known stamp of its kind, the Alexandria Blue Boy is a circular blue stamp issued in 1847 or 1846 (it’s said to have been used as postage for a love ...

A famous invert error stamp has sold for well over its estimate at a New York sale. Discover the upside-down 1c Pan-American ...

When most postal offices start selling the stamp on Monday, Jan. 22, all Forever stamps, including the new Love stamp, will cost 68 cents. USPS price hike:US Postal Service proposes new postage stamp ...

The universe of United States postage stamps ... Galaxy NGC 628. Both stamps feature images taken in 2023, in the first and year and a half since Webb — the world's most powerful telescope ...