My M2 kit is finally set up and ready for shooting, and while a film advance counter that doesn't automatically reset doesn't bother me too much, I'm not quite sure where to start it. Do folks set it to ~38 and start from 1 as normal?

Also, I'm a bit confused about the DIN/ASA dial on the back- did Germans have their own set of film speed numbers at the time?

Looking forward to getting good use out of it this weekend!