My guess is the German type was first simply because it would be odd for them to pass over an existing model (BW type), modify it to another type (French type), then go back to the original. It also doesn't make sense to have two different models in full production concurrently.
Schuberth (note the H at the end) is Germany's most prolific and longest running helmet manufacturers. Er, at least I can't think of another that beats them.
https://www.schuberth.com/en/company/helmet-history.html
Steve
Schuberth (note the H at the end) is Germany's most prolific and longest running helmet manufacturers. Er, at least I can't think of another that beats them.
https://www.schuberth.com/en/company/helmet-history.html
Steve