I have a 1959 19' grumman power boat that i am stripping down to restore. Does anyone know what series of aluminum they used back then? i measured the thickness-- it's .o80 I also wanted to find out how they formed the boat over the frame. Would it be possible to put a new ,o80 skin over the existing frame? ( everything is rivited) Any imfo about these older boats would help me alot. thanks bill
