Johann Kalezky of Wien looks to be the Alexander Henry contact source for the Austro-Hungarian Empire. I did not remember him having a DR falling block patent but I would venture a guess that he was sourced by the waffenhändler of Graz that peddled the subject falling block.

http://www.martiniandhagngunmakers.com/forsale_rifles.htm










Johann Kalezky Wien DR in 9.3x74R with Kalezky Patent atop the block



Kind Regards,

Raimey
rse