The lens was also chipped with a custom CPU from Birna
at a later point when it worked.Now owned by another NikonGear member
So the question is, did it maintain rotation and the indexing,,,?
Difficult to remember 9 years later
But as far as I recall it did, that is why I put an "Index mark" directly on the F-Mount
Otherwise it was difficult to quickly see what was up or down on the mount since there is no aperture lever and it was not yet chipped when the modification was first made!
PS the lens is a bit difficult to mount for the same reason,,,