Troppau(Herzogtum Troppau) is the German name for the Czech city Opava and I am not sure when Ferdinand Fückert and other makers in Böhmen used dual names for their cities in their advertising?? But images of the marks on the underside of the tube will tell the tale of the longarm. I do wonder how the current custodian has knowledge the stock is not original?

Serbus,

Raimey
rse