1915 Artillery 8" Barrel

[eaglehigh]

I am new at this, having been referred from Gunboards.com. and have no pictures. Am trying to find out exactly what I have. Please excuse my terminology. The forum at Gunboards believes I have an Artillery Luger. The serial No. is 1493, all matching parts including the magazine, I guess, which is stamped 9M3. It has an 8" barrel with rear elevating sight. DWM is stamped on the top of the rear toggle with 1915 just behind the sight. I can find no match to this on the manufacturers logos. Also, I can find no match to the guns proof marks. They are similar to illustration No.15 except the left most mark is the same as the other two - like a script S. Stamped on the left side of the barrel between the full serial No. and the trigger safety is "Germany". The Gunboard fellows say that this indicates an import into the US and sold through a dealer. However, the history is that it was removed from a dead German in WWI and given to my father. Can you give me some more direction please. Thanks - Harry