For anyone interested, I have just posted some pictures on wooljersey of a
newly acquired and cleaned 1935 Durkopp sixday. It came without wheels or
pedals and period correct items were added. Otherwise the bike has only
been cleaned and as it was found in a warehouse in NYC. Likely it was
imported by the Durkopp dealer of the day Eisenmann. Durkopps like this
were the favored bike of members of the local German Bicycle and Sports
Club. I have several more pictures to add but that will take a few days.
The bike can be seen at
http://www.wooljersey.com/