I would like to show a relic coffee mug from the U boat 177 that has come into my possesion.Depth charged and sunk in the South Atlantic by a U.S Liberator in 1944 with the loss of 50 of her crew. This mug has clearly been in a salt water environment, with damage to the glaze caused by salt emmersion/ sea life. A very thought evoking piece, but quite how it has 'surfaced', i cannot explain. Has the U 177 ever been legally dived on and artifacts recovered?. It would seem so. Your thoughts please.