Mel Fisher was the treasure hunter made famous for his 16-year search for the Spanish galleon Atocha shipwreck. His mission led to the discovery of a $450 million mother lode in the waters off Key ...

Nearly 40 artifacts from Mel Fisher's collection will be auctioned off by Guernsey's on August 5, 2015. The chalice has a starting price of $200,000, according to the auction’s website.

According to Mel Fisher research, there are still 128,000 silver coins, 14 tons of silver bars, 150 copper ingots, over 100 gold bars and discs and more riches waiting to be found at the dive site.