Wayne,
What I believe is being referred to is the Krieghoff final acceptance stamp. No final acceptance stamp was placed on early guns up to about SN 4000.
But, starting around SN4000, HK started doing a FINAL inspection. They initially used the number 7on the right frame under the grip. Then in late 1936 and going though the 1940 guns, HK placed a Six-pointed star on the right side of the frame under the grips.
There is some sort of mark showing on the photos but I cannot make out details.
FYI, still later small characters in the frame well were used.
John
Last edited by guns3545; 09-24-2015 at 10:01 AM.
Reason: Detail time line
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