It's probably useless information ?
DKW go back to 1906 started in a cloth mill.
In 1928 they became the world's largest motorbike manufacturer with 2,400 workers and over 45,000 motorbikes being produced per year.
In 1929 this rose to 60,000.
In 1940 DKW made the RT/2 125, at DKW's Saxony factory. After the end of the war the RT was built again by MZ
The DKW RT125 was the most widely copied motorbike in the world.
Replicas were made by Harley Davidson , BSA , Komet , Minsk , and Yamaha.
Here end the lesson......................info taken from Xmas present of the wife , 1000 Motorbikes