Luger with no date stamp

[HerrKaiser]

Well, it is because the features of the upper are...unique to say the least. As you mention, all the numbers do appear to match. However, the crown N and "Made in Germany" stamped on the barrel, as well as the blank chamber, indicate that much of the upper was commercial instead of military production. The toggle train is Erfurt Production, and Erfurt did not make commercial Lugers, only guns for the military. Your sideplate also appears to be Erfurt military, and the top of the chamber has an "artillery cut" for an LP-08-which had numerous manufacturers. I dont think I have ever seen a Luger configuration like this.

[Yanik213]

Is that bad or good lol (never seen a Luger like this)

[Doubs]

Originally Posted by HerrKaiser

However, the crown N and "Made in Germany" stamped on the barrel, as well as the blank chamber, indicate that much of the upper was commercial instead of military production.

The receiver notch for an Artillery rear sight indicates that it was military production. IMO, everything except the replacement barrel was military.

Below is my 1920's rework of an Erfurt Luger with a new 7.65mm barrel and the date removed. Everything except the barrel is matching. I acquired this in the late 1980's and it was imported by CAI as marked on the barrel. They list it as an M24 suggesting that it came from Finland.

The serial number is in the "i" block so it was made in 1917 or 1918. In Still's "Imperial Lugers", no "i" block 1916 Erfurt Lugers were REPORTED above the "g" block while the "i" block was used in both 1917 and 1918.