Yeah, he was born in 1839 & should have obtained his master mechanic's sheepskin by say 1863/1864 and then he hung out his gunmaking shingle in 1865. He looks to have retired or expired near WWI and an Adolph Reinhackle was @ the helm by 1913 & I would hazard a guess he was a relative such as a son-in-law or other.

Cheers,

Raimey
rse