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complete teardown of the Nikkor-P.C 10.5cm f/2.5 RF

In one of your photos one can see that the groove of the cam barrel for the rangefinder actuation is changing direction.
I did not expect a change of direction. What did I miss?
 
In one of your photos one can see that the groove of the cam barrel for the rangefinder actuation is changing direction.
I did not expect a change of direction. What did I miss?
sorry for the confusion there, I think I flipped the thing! ooops...
 
excelent!