The threaded hole in the female portion was used for the steel "lever" that you see in the following picture. I am not a rifle or pistol expert, but the mold does seem to be quite old. The numbers stamped seem to possibly indicate factory type work. Possibly the marking on the back of the male part is 74 and F6.


Last edited by Daryl Hallquist; 11/07/19 10:00 AM.