[mrerick]

As Ron mentioned, the "i" block of commercial Lugers was made in about 1922 by BKIW/DWM in Berlin. Your gun was made for export to the USA, as evidenced by the "GERMANY" import mark on the front. The complete serial number is "7913i". This was the first block of lugers made by DWM for commercial sales with the letter suffix. The prior block was in the 92000 serial number range - 5 numeric digits.

These guns, in .30 Luger caliber, are less valuable than military issued guns. Your Luger looks to be in pretty good condition except for considerable finish loss on the grip straps. One in higher condition would sell for $1000 to $1100 today. I think $750 is a bit low, so would estimate $850 for yours.

Don't store your gun in the holster up against the leather. It has been known to cause finish damage.

Make sure it's clean and lubricated. Avoid shooting it, as parts do break. If you must shoot it, replace the magazine - the wood bottom ones are fairly delicate and are known to break.

The BATFE rules mentioned earlier are important to respect, especially in today's political climate. They have interpreted as owning both a pistol and an attaching stock as "constructive possession" of a Short Barreled Rifle, which is a NFA firearm requiring special authorization just like a machine gun or silencer. There is a curio and relic exemption when you match the historically correct Luger with it's stock. You, unfortunately, do not have this.

Some people back in the 1960's were so worried about this issue that they had the stock lugs ground down off their Lugers, ruining them for collectors.

If I were you, I'd consider selling the stock since you can't use it and it is a liability.