Winchester348,
Over on German Gun Collectors Assn. forum, We have a member that is Russian. While his interest is German guns, he is knowledgeable enough that he may be able to answer your question. Your gun would be outside the GGCA forums topic, but If you join the GGCA, you could use the forum to PM ( or email)him with your question. His screen name is MARAT. Who knows, you might find the GGCA interesting, anyway, I certainly do.
Mike