Rolf has collected genuine Adler parts from dealers all over Europe for many years*. He was a bit difficult to contact since his English was not good and he relied on family members to translate for him. Making the matter worse is the recent news that he has died. However, if you are after a genuine and difficult to obtain ADLER part, it would be worth your while to make contact with his son-in-law, Matthias Ritt on his eMail address: matzeritt@kabelbw.de
Matthias has inherited all of Ralph's parts and has set up a company called Adler Dienst to sell Adler parts. Mathias distributed a catalog of available parts early in 2012 as follows. Some parts may no longer be available so contact him first.

Click to enlarge his Price List pages:

These prices were valid in February 2012