Columbus-era ship yields wealth of artifacts

Geologists from De Beers, the diamond company, have discovered the wreck of a late 15th or early 16th century ship loaded with Spanish and Portuguese treasure behind a seawall in Namibia.

A large variety of artifacts were found at the site including "several tons of copper, more than 50 elephant tusks, pewter tableware, navigational instruments, weapons and the gold coins, which were minted in the late 1400s and early 1500s" and six bronze cannons.