Half a century ago this July 26, America woke up to news that had many fearing a repeat of the 1912 Titanic disaster: A Swedish ship, the Stockholm had slammed into the side of an Italian luxury liner, the Andrea Doria, off Nantucket, Mass.

PCGS Currency, a division of Collectors Universe, Inc. (NASDAQ: CLCT) of Newport Beach, California, has made the first known public inventory by series type of historic bank notes recovered from a safe salvaged from the submerged Italian ocean liner, Andrea Doria.