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.

More than 3,600 U.S. and Italian bank notes recovered from the 1956 Andrea Doria shipwreck have been submitted by Rare Coin Wholesalers to PCGS Currency for inventorying and certification.

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.