This is just a cross post for the F.W. Keßler thread:

http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=207927#Post207927





Henry Voght Chicago drilling referenced to Marshall Field:



My guess is that F.W. Keßler was also sourced for this example also. But without seeing the marks, Merkel(any of the klan) or Sempert & Krieghoff are viable options.

Kind Regards,

Raimey
rse