An extremely rare half-dollar coin from 1838, now valued at as much as $500,000, is set for auction this week. The 1838-O Capped Bust half dollar is one of only nine that are known to exist, according ...

The finest example of the 1804 silver dollar known to exist sold for US$7.86 million at a Stack’s Bowers Galleries auction earlier this week, making it the second-most valuable U.S. silver dollar ever ...

Stack’s Bowers Galleries, a division of Fortune 500 Company Spectrum Group International Inc., combines the extraordinary histories of Stack’s, the oldest rare coin auction and retail company in ...

Where James A. Stack Sr. acquired it is a mystery that may never be solved - but for more than 70 years, one of the rarest coins in American history sat quietly in his family's collection. Stack, a ...

Silver coins are one way to invest in physical silver. Learn the most common silver bullion coins, purity standards and what ...

An American silver coin dating back to the 17th century, before the United States was founded, has sold for a record-breaking $2.52 million at auction, eight years after it was discovered in an old ...