J. Novotny of Praha peddled several drillings with paradox type rifling but after the 1870-1880 period I am not aware of him sourcing the Brits for any components and have serious reservations that he would have sourced WR, although the possibility exists. A glance at the proofmarks will tell the tale. This J. Novotny peddled example here on NE was more than likely made by Franz Jaeger as it has his patented ejectors, which are seen on several of the Berlin contingent of firemarms merchants and that may be the link:

http://forums.nitroexpress.com/showflat....=true#Post20443

I believe Johann(Jan?) Novotny of Praga hung out his shingle in 1865 and may have acquired the shop of Anton Vincent Lebeda(1797-1857) of Praze.

Kind Regards,

Raimey
rse