Raimey,
thanks for the information on serial number/reproof mark.
that narrows it down in that I can disregard the makers you mentioned and try to find which of the remaining Suhl makers would have had guns in that range of Serial number.

Any info on where Krieghoff serial numbers would have been in 1939?

The serial number of this gun is 366005

Yes, it is a Bockbüchsflinte, or BBF for short.

Forgive my ignorance, but what is a '1/2 pipe side frame reinforcement ?

Best regards
Günter

Last edited by Gunter; 05/09/12 02:45 PM.