Hi all. I have an Astra copy of a Mauser broomhandle that I'm trying to find out something about. It's marked on the left side ""ASTRA" AUTOMATIC PISTOL CAL 7.63" and has 3 proofs on the right side. The numbers on the frame and bolt do not match, the bolt has a different proof. There is a Century Arms import mark on the underside of the barrel. The "Blue Book" only mentions that Astra made them, and no other info. What I'd like to know is how many were made and when, and when they stopped. I'm trying to get some idea of when this one was made. Thanks in advance.