Should only be taken apart by a trained professional
Mostlikely it would of been a Walther. The model is not known because mostlikely a Russian footsoldier fould the gun and kept it or destroyed it. In my opinion, through pictures I have studied, it was a Walther PPK.
@ the turn of the century
50 USD
Brazil 12 gauge single shot gun
Ask your local gunsmith for help.
50 USD
Single shot 12 gauge.
$50-$80.
riverside arms co. split single shot gun
Proofhouse.com has sn data
Yes if your looking for a single shot gun then you must mean a bolt action. The bolt will be on the right side. The gun will be made from wood except for the internal workings and barrel. MistroJoe
Single shot 22 LR