A very cool piece, congratulations to it! Were all German contract Frommer Stop in 7.65mm caliber?
I had last year developed myself some interest in the Frommer Stop pistols and currently own four of them, each different from the other, but no German contract among it (I have one Frommer Stop 7.65mm with rubber grips and BP16 military proof, a Frommer Stop 9mm with rubber grips and BP16 military proof, a Frommer Stop 7.65mm with wooden grips and a Bp commercial proof (without year) which has additional V.E. over a number stamped on the right side of the frame, a Frommer Stop 7.65mm with wooden grips and a circled BP over 1 commercial proof with additional Vienna 1917 proof on the frame (officers purchase), they are quite unique of each other!).