I have come across a VZ-24 mauser with only the date of 1937 stamped on the receiver. I remember reading something about these being a contract for the Japanese but can not remember were I found that info. The gun only has the ser# stamped in 3 places barrel, receiver, and stock all matching. All other parts are either blank or have the circle Z stamp. The ser# is in the 48xxx range with no letter prefix. Could someone tell me if this is true about the Japanese contract VZ-24's and if so does this gun fit the description of one? I am considering purchasing this.