Friends, I saw this single shot pistol, Serial No. 9 at a small show in the middle of an ammo collection. It was not for sale. I had my camera and grabbed this shot. The cartridge seems to be about 7mm, with a rim of 12mm, body of10mm, and 27.4mm long. The screw-on barrel shows some rifling. The pistol seems to be about 4.5 inches by 3 inches by 1 inch in width. Any ideas as to what this was? :confused:

It looks home made. I really don't have a clue though.