This is a nice original German Franz Stock semi auto pistol chambered in 7.65mm.  Mechanically this pistol seems to work fine and should be a good shooter.  This pistol is not import marked.  These were manufactured prior to WWII and were brought back during WWII as war trophies.  Unfortunately, there’s no way to substantiate that this pistol came to the States that way.  Overall, a good little pistol that you won’t be afraid to take to the range.