Axel:
Thanks for taking the time to confirm my suspicions. I too would hazard a guess it was sourced from one of the Bohemian gunmaking centres being either Praze or Vejprty/Weipert. Anton Vinzenz Lebeda, I have him born on May 1st, 1797 and departing this life on July 2nd, 1857. Just a couple years different in birth. Anyway, the tubeset looks to be sourced from Liege and interesting alignment marks.

Kind REgards,

Raimey
rse