Yes, Axel thank you for the effort and I asked for an expansion of some info you had previously posted in an effort to gain a little more knowledge. Instead of email, I decided to post here for the benefit of the couple others that follow along. I'm curious if Ernst Stoll(maybe descendants of Friedrich Stoll) was the father of Max Heinrich Stoll and when he might have hung out his tube making shingle. I would assume Wilhelm Richard Jäger originally of Mehlis seems to have a long career of tube making and may have at one time had a shop in Suhl & Zella-Mehlis. Surely the Jägers of Benshausen, Suhl & Zella-Mehlis can trace their roots back to a focal point? Also there were larger concerns like Kriehgoff, Sauer, Simson, etc. had rolled their own but their mechanics weren't specifically labeled as tube makers? But in the census or town records their occupation would have been listed?

Kind Regards,

Raimey
rse