Numismatic items up for auction from the SS Central America include this 1857-S $20 U.S. gold coin with deep golden red patina known as the “Golden Gate” coin (est. $75,000-$200,000). 13 troy ...

"The California Gold Rush: Getting there, Mining, Contemporary stories and accounts, Private coiners and assayers, San Francisco Mint -- Treasure of the S.S. Central America: Saga at sea of the ...

Oceans have long hidden the remains of ships that never completed their journeys. Many went down with vast amounts of cargo.