Proof Marks On Commercial DWM

[DonVoigt]

These have been shown and discussed before, they appear on East German , Erma reworks.
Though not certain, I believe they are workers marks for Erma in the '60s- JMHO.

Similar markings are on my Bulgarian 1908 rework that is pretty certainly Erma work from surplus Bulgarians sold in the post war period.

[Mike K.]

Don,

Very interesting, thanks for the response and information. Do you happen to know any of the links to those discussions?

Also, was any of the metal reworked on your example? Mine had some edges smoothed, as well as a serial number added. You can actually see some of the metal rework in the image I posted.

Thanks!

[sheepherder]

Originally Posted by DonVoigt

Similar markings are on my Bulgarian 1908 rework that is pretty certainly Erma work from surplus Bulgarians sold in the post war period.

Don, this is the first frame ear I have seen pictures of that shows definitive [& rough!] surface grind marks. My own Luger ears are all lacking any tool marks, whether mill, grinder, or polish. I have to wonder what the Erma people thought needed additional grinding...Unusual to see this pattern of grind marks, it indicates some kind of horizontal grind fixture, rather than a vertical rotary grinder...

[DonVoigt]

Originally Posted by sheepherder

Don, this is the first frame ear I have seen pictures of that shows definitive [& rough!] surface grind marks. My own Luger ears are all lacking any tool marks, whether mill, grinder, or polish. I have to wonder what the Erma people thought needed additional grinding...Unusual to see this pattern of grind marks, it indicates some kind of horizontal grind fixture, rather than a vertical rotary grinder...

Good question, but I have no idea.
Maybe a dent that needed cleaning up?
Another one of those curious "un-knowables".