re: "800 lb torpedo..."
I guess that it's only of academic interest at this point, but the "800 lbs" surely refers to the warhead, not the gross weight. To my knowledge, the only torpedo (any flag) that had an 800 lb warhead was the USofA WWII era Mark 8 Mod 4 fish.
Me thinks a keepsake belonging to an old sailor with an understanding wife...
I agree. I also think it probably was a dummy weapon or one that had the warhad removed. Possible museum piece?
I have not bothered to find out if the torpedo, did in fact, have a live warhead. A rather moot point, now that it is in the governments safe (hopefully) hands.