Perhaps Jeff or others will say I'm wrong but it doesn't look "right" to my eyes. The font looks wrong and the picture doesn't show any halo around the letters/numbers. The stampings look like the metal that was displaced is shiney, indicating a recent strike. Also, VERY few 1917 Lugers, according to Jan Still, were unit marked. It may be the picture doesn't give a true image and, in any event, it's just my opinion based on what I can see.