Just an observation, in the advert at the top it says NEUHEIT which I think means New or New to the Marketplace???? If so then is it possible that it would have a DRGM stamp? To protect against someone else copying the design? I read online that the DRGM mark had to be applied for and paid for and would be active for 3 yrs, perhaps after 3 yrs they did not reapply for the DRGM mark so only earlier versions would have the stamp? Just thinking out loud.