Well, it looks like you already know it is a Luger. Definitely pics are a MUST in a situation where you want to ask others for helpful information. Any stamps on a macro setting on a digital camera ought to come out well. See if all of your parts are matching. You should have your main serial number right above the takedown lever. Check your other parts for a 2 digit stamp, that should end in 02 matching the last 2 letters of your serial number. The barrel should also have a full serial number on it, as well as the front of the frame directly beneath where the barrel screws in to the frame. Also check your magazine to see if it is matched to the gun.
2 digit part stamps should be on the following parts: Takedown lever, trigger side plate, trigger bar, trigger, holdopen latch, breech block, forward and rear toggle link, extractor, and the safety bar when it is on safe (GESICHERT showing). All of these should be visible without taking apart the pistol, except for the holdopen latch for the magazine. You will have to field strip to read that. Another thing to note is whether or not the pistol has a stock lug at the bottom of the rear frame strap between the grips to accept a wooden shoulder stock. Holster could be original, might be hard to tell by pics. There are quite a few repro holsters out there. The stamp on the holster is the manufacturer. Takedown tool and extra mag is good too.
So it looks like additional information may be needed. Pics are especially important of any markings, with a camera on a macro setting to tell whether it was a commercial or military Luger. But, a 1914 DWM depending on condition of course, can vary in price. Matching mags are desirable by collectors, if you have any intent of getting rid of the pistol. So depending on condition, you could be looking anywheres from $700-$900 just a ballpark guess with no pics.
Your pistol was made in 1914 at the DWM (Deutsche Waffen und Ministionsfabriken) factory. Check the front strap of the grip frame to see if there are any numbers stamped there. Imperial pistols were sometimes stamped with regimental numbers. So an example would look something like 64.K.4.35. The first two numbers are the regiment number. The K would mean it was issued to someone in the Calvalry so it could be the 64th Cav. Unit. The third number, the 4 is a squadron or company, and the last number, 35 is the issue number to the unit. So this would theoretically be a pistol issued to the 64th Cav, 4th company being the 35th sidearm issued to that particular unit.
HTH, more info and PICS!!!

Here is a vid I did on my YT account as well, maybe you can get an idea from this.