Thanks Canvas-Back. From a cursory view, I do not see H.A. Lindner's quality control mark nor does the example wear the Triebel forend bump, but has the long Triebel toplever. I wonder where APUN 347 takes us? With the info thus far, this example had to be commenced in the mid 1870s and makes one wonder if there were serialization sets for hammer & hammerless offerings. I wonder if there is another Nr. 61 hammergun out there?

Many thanks for the effort.

Cheers,

Raimey
rse