ithacaartist, the difference in length between the long and short frame is 2m/m.
I'm going to respectfully disagree with you that post WWI assembly of Commercial Lugers involved scraping all possible parts together, at least for DWM in respect to the five digit serial numbered 1923 Commercials. I believe they are of new manufacture. Except for markings and a new barrel they are the same as a 1914 standard military.
At wars end DWM was still at full production. There was a short pause but, they didn't have to start trying to scrounge up all the surplus Lugers, and of their own manufacture at that, they could get to try to stay in business. Germany was not defeated, they negotiated an armistice and agreed to the terms of a treaty. Germany was never occupied. They were in dire straights but, they were not down and out.
When I say new manufacture I'm not saying everything fresh out of the foundry or fresh off the lathe. Some of that, barrels for sure but, a lot of new old stock. DWM's new old stock was still being used by Mauser in instances all through their production and into 1945 and 1946, when they continued putting Lugers together for the French. The LP08 barrels and rear sights were of WW1 DWM manufacture.
I can't think of ever seeing a five digit 1923 Commercial other than having a 98m/m barrel in .30 Luger. I've seen two Safe/Loaded with six inch barrels but, the barrels on both were un-numbered and stamped GERMANY. That pretty much indicates a replaced barrel to me. Both guns were marked GERMANY on the frame above the trigger guard and they both were C/N proofed. Since they had been pressure tested, that, to me, says they had had other barrels before the six inch ones.
I'm not definitively saying no such thing as a 1923 Commercial Navy or Artillery in the post WW1 Commercial serial range exists but, I am saying I'd need to see at least a good photograph to be convinced.
For the "1923 Commercial" subject of this thread, I say it's way out of character for a 1923 Commercial in both its serial number and configuration.
Jack
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