Divers recently located the stern section of the "Pan Pennsylvania", which was sunk by U-550 in 1944. It is quite intact, and several artifacts remain...There are some interesting comments from a survivor (92 years old) who was presented with ceramics recovered from the ship.
Shortly afterwards, U-550 was sunk by American escorts. U-550 herself was found in 2012.
http://members3.boardhost.com/Modive...397684161.html
http://www.bradsheard.com/u550.html