Long story short, I'm doing some research on husband's grandfather M, who was killed in WW2 when his ship was shelled at Iwo Jima. During the course of my research, I found a man who was on the ship at the same time. He's really helped me a lot and given me things about the ship that I didn't even know existed. We have thought about ways to thank him and one involves a patch from the ship. The only problem is that the ship was decommissioned years ago and I don't know where to find patches from a ship that old. Does anyone have any ideas?