I've had the chance to break down my Luger, and found it rings all the bells of this one with a few exceptions......Yep. I started to research them a few years ago and got sidetracked on Walther and other. Starting to look at Lugers again and I’m reminded of the amount time and research it takes just to have a basic understanding. I think that’s what makes it interesting and fun!
Mine has the American Eagle above the chamber (of course), has no proofs on the lower barrel and left side of chamber, also has the Type II safety (curved surface w/cross hatch). EDIT; It also has the oval with the "JVM" initials under the side plate (on frame), to identify it as a John V Martz Luger. This marking is known to anyone who has watched any vids on the Martz Lugers.
Everything else matches up, long frame (w/o shoulder stock mounting lug on rear backstrap), wide trigger guard, right offset trigger, DARK flame blue link pivot pins and grip screws, small grip safety, anti-bounce latch in the right toggle, smoking bomb proof-mark/stamp, and the BIG one, EVERY number matches (7845/45) on the ENTIRE firearm, even the grips. EDIT; Worth noting is the uniform "edge breaking/deburring" on all the parts, total absence of ANY external tooling marks, and the absolute straight, square, and uniform character spacing of the ident/proof/ser# stampings. The "everything done right" mindset really shows on these early Lugers.
The mag has NO base markings, thought this was a minus at time of purchase, turns out it's a plus. Mags were not marked on these early 1900 Lugers.
Seems like I did even better then originally thought.
I totally agree on the fun part.