German: German Mfg. (non-P08) Pistols & Holsters.
http://www.mauserguns.com/forum/index.php?topic=275.0
https://www.rockislandauction.com/detail/1032/4953/kriegsmarine-marked-low-grip-screw-mauser-hsc-pistol-holster
Started thread in wrong section. I apologize. Any thoughts on if this is legit?