READ ON THE FOX BUSINESS APP "Its appearance at public auction will be a historic event, where all of the rarest and most sought-after stamps issued by the United States will be offered for sale ...

The stamp, seen here with Siegel Auctions President Scott Trepel, once famously featured in an episode of the Simpsons A rare US postage stamp ... while at a yard sale. "The airplane's upside ...

Year of the Snake stamp Tuesday, according to an announcement from the USPS. The Postal Service printed 21 million stamps ...

An upside down ship makes this commemorative stamp one of the most famous and valuable American postal errors of all. Find ...