Checked my 11 o'clock nickel Elmar 3.5/50mm which is in feet as well, but it does not have the Germany marking. Then again, it's an 11 o'clock lens, so maybe everything was different anyway from the one to the next model... Mine is unnumbered and sans infinity lock as well... and it has the comma integrated into the '3' which I think is kinda cool, it does not seem to be a mis-engraving.
That's a lovely pair! How do you think they compare to one another?
Derk