Does a reader know more?
So if a patent model, this machine was probably built by an amateur. Richard tried and could not find the patent for this. He searched from 1900 to 1936.
Can a reader say more about this device?
I want to thank Richard SantaColoma very much for his support. Only a few hours after I had informed him, he sent me his report including the photographs. Rich, I really appreciate your help!
Further reading: A little known encryption machine that could have changed the course of history