Proof marks onGrip Screws

barr44 · 11-15-2024, 10:18 PM

I have a DWM double date luger which is double dated 1918/1920.
The pistol was at some time worked on at the Ulm factory since is has the antler mark on the frame. The pistol has proof marks on the grip screws, a Crown over a U it looks like, which I believe is a firing proof, not sure. Would the Ulm factory people have proofed the grip screws after their repair, and would the double date been added at the ULM factory repair?
I have never encountered proof marks on any of the grip screws on any of my other Lugers, so just wondering why they would proof mark the grip screws after a repair. Did they have some type of indicator as to what repair was done when repairs were done?

Roadster 02 · 11-16-2024, 10:17 AM

Grip screws are from an Erfurt Luger, they marked most parts

Doubs · 11-16-2024, 03:09 PM

Quote:

Originally Posted by Roadster 02

Grip screws are from an Erfurt Luger, they marked most parts

They would also be from 1910 - 1914 as 1914 is the final year that Erfurt marked grip screws. Erfurt made no Lugers in 1915 and when they resumed production in 1916, grip screws were not marked.

barr44 · 11-18-2024, 09:45 PM

I appreciate the info, but it is somewhat confusing as to why Erfurt grip screws would be on said pistol, unless Erfurt supplied parts to the Ulm factory, I suspect it is one of those areas where there is no definitive answer. Again I thank all for the inputs.
B

Doubs · 11-19-2024, 02:19 AM

Quote:

Originally Posted by barr44

I appreciate the info, but it is somewhat confusing as to why Erfurt grip screws would be on said pistol, unless Erfurt supplied parts to the Ulm factory, I suspect it is one of those areas where there is no definitive answer. Again I thank all for the inputs.B

If it was commercially proofed at Ulm then the chances are that it was repaired at some point. That repair may have included replacing the grip screws. (That alone would not be cause to be proofed again. Re-proof is done after replacement of certain parts such as the barrel, breechblock etc.) The screws may also have been replaced many years before that. As you say, there is no definitive answer to that question.

wlyon · 11-19-2024, 01:59 PM

Could have been replaced by anyone any time. Bill

Mac Cat · 11-19-2024, 02:03 PM

Good item to sell or trade, too!

11-15-2024, 10:18 PM	#1
barr44 User Join Date: Jan 2007 Location: york co., va Posts: 153 Thanks: 27 Thanked 35 Times in 21 Posts	Proof marks onGrip Screws I have a DWM double date luger which is double dated 1918/1920. The pistol was at some time worked on at the Ulm factory since is has the antler mark on the frame. The pistol has proof marks on the grip screws, a Crown over a U it looks like, which I believe is a firing proof, not sure. Would the Ulm factory people have proofed the grip screws after their repair, and would the double date been added at the ULM factory repair? I have never encountered proof marks on any of the grip screws on any of my other Lugers, so just wondering why they would proof mark the grip screws after a repair. Did they have some type of indicator as to what repair was done when repairs were done?

11-19-2024, 01:59 PM	#6
wlyon Lifer 2X Lifetime Forum Patron Join Date: May 2005 Location: Somewhere in Montana Posts: 2,636 Thanks: 3,174 Thanked 2,559 Times in 955 Posts	Could have been replaced by anyone any time. Bill __________________ Bill Lyon

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11-16-2024, 10:17 AM	#2
Roadster 02 User Join Date: Aug 2018 Location: Rocky Mountain High Posts: 313 Thanks: 173 Thanked 252 Times in 87 Posts	Grip screws are from an Erfurt Luger, they marked most parts

11-18-2024, 09:45 PM	#4
barr44 User Join Date: Jan 2007 Location: york co., va Posts: 153 Thanks: 27 Thanked 35 Times in 21 Posts	I appreciate the info, but it is somewhat confusing as to why Erfurt grip screws would be on said pistol, unless Erfurt supplied parts to the Ulm factory, I suspect it is one of those areas where there is no definitive answer. Again I thank all for the inputs. B

11-19-2024, 02:03 PM	#7
Mac Cat Lifer Lifetime Forum Patron Join Date: Apr 2015 Location: Austin, Texas Posts: 731 Thanks: 2,095 Thanked 610 Times in 329 Posts	Good item to sell or trade, too!