Just curious about the manufacturing process.

[xwarp]

How big of a hammer and hard do you think they hit those punches when they proofed and serialized the parts?

 

[mrfarb]

Pretty hard. This is what looks like one of the wood Wa135 stamps and the top is mushroomed pretty good. This is one that came out of the sewers at Mauser.

 

[runner]

were the receivers numbered after they were heat treated?