Hi Brian, Sorry for not getting back to you but have been away. Dont know too much about any traces from Russia. The only information I have is some letter headed paper which shows a picture of the factory in Germany. . The letter I have was written by Charlo Schatz to his GrandMother (my Great Grandmother) on 6th Nov 1935. I think the factory is all gone now what with WW II etc. If you can be of any further help I would be obliged.