Hey gang: What does anyone know more about Durkopp? German or Swiss? It looks like, in this catalog page, it was top stuff in the 1940s-early 50s.
http://www.classicrendezvous.com./
Note that the Durkopp hubs are more expensive than FBs, etc. I see references to Durkopp bikes all the way back to the turn of the century plus automobiles and modern sewing machines...
Dale Brown
Greensboro, North Carolina