When considering buying investment grade stamps, you are focusing on less than 2% of the stamp universe. Any useful advice you get from dealers or collectors is very limited and heavily biased. Talk ...

The valuation of any item is subject to a variety of factors some of which appear universal and others which are unique to the product. This is true for investment grade postage stamps but, to make a ...

The "Inverted Jenny," 1918, one of the rarest and most valuable stamps in the world, celebrates the first air mail in the U.S.—by depicting an inadvertently upside-down airplane. Hannah Whitaker ...

Difficult it is to recognize a U.S. stamp these days. No sooner does one get used to the Statue of Liberty on a blue stamp than Abe Lincoln shows up on a purple one. Then, expecting Abe's face when ...

A one-cent postage stamp from 1868 is expected to become the most expensive U.S. stamp ever sold when it heads to auction in June. Known as the “Z-grill,” the stamp is the most-valued piece of what ...