This is what I found,somewhere on the web. Don't shoot me,in case of wrong info. :wink:
A quick web search revealed that there is a lot of information about the bikes ... the following is regarding a MARK X:
Volkscycle sounds German, but the bike was made in Japan by Bridgestone and imported to the US.
The bikes are from the early 1970s. It came with Shimano Dura-ace centerpull brakes.
Bridgestone made pretty good bikes.
No doubt, different Volkscycle models probably came with different components.
Another blurb about someone else's Volkcycle XX states that the particular owner identified his frame as being:
Double-butted chrome molybdenum steel. Faux-Nervex lugs. Forged drop-outs.
So, your bike probably has a pretty nice frame & probably has good components.