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 ...

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 ...

One of the most coveted, rare coins ever struck by the U.S. Mint – a long-lost 1804 dollar – is expected to sell for millions at auction Sunday, according to auctioneers at Stack's Bowers Galleries.

One of the world's biggest names in coin collecting is minting its first San Francisco gallery.

A Curiosity Hook in Silver Most investors know gold dominates silver on price — but in the ultra-rare coin market, some ...

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 ...