Having used a bit of German Silver in my day....I have a hard time believing the German's used soft silver ..(or any silver)...THEN COUNTERSUNK the holes that deep FOR A TRIGGER GUARD...??.....If it was true soft silver, one would think the engraving should and would have disappeared long ago......If it was mine, I would have the metal tested for alloy content.....then move forward.....the DEEP countersink is the give-away for me.....even if it was nickle silver, the trigger guard would have multiple ring dents on the sides....as with any soft metal.....
Best,
