Dear Ralph,
My drilling is produced (using main gunparts of Heym) by “J.C.Stahl & Sohn in Hamburg”. I have not hear about any other gun direct from J.S. Stahl.

Later (in 1920-1930-ties) that firm became “Stahl & Berger in Hamburg” and used such trade marks as “SBH” or “StBH” also “Bürgermeister” or “BüMa” or “Bürger SBH Meister”. They have two stores in Hamburg and were a dealer of some famous German gunmakers. They also made guns by himself. They are not a well known gunmaker as for example Krieghoffe (also in Humburg), but information about some guns can be found on the net. For example.

http://www.scotarms.co.uk/catalogues/666.htm
2-nd item from the top

http://www.feine-jagdwaffen.de/cms/index.php?id=8,0,0,1,0,0
10-th item from the top

http://www.artfact.com/auction-lot/gebru...59-c-9w3mpt2vbl

I suppose that my drilling was produced in the beginning of XX century, before WWI, but later, once before WWII was repared (“R under the crown” stamp) by the same firm (SBH stamp on the base for riflescope was added)

In the next page You will find some words as about “Stahl & Berger in Hamburg” as “Nagel & Menz”

http://www.feine-jagdwaffen.de/cms/index.php

Interesting rifle from “Nagel & Menz”

http://www.gunsamerica.com/976988820/Gun.../NAGEL_MENZ.htm

Current address (possibly heirs)

http://web2.cylex.de/firma-home/nagel-_-menz-2848735.html