In effect this model is the earlier Chrome finish lens in Black Paint.
EXCELLENT, near Mint condition - please see images attached.
Focus operation, Aperture movements and Optics are all good.
A superb example of an early and RARE Nikon Nikkor lens.
To fit Nikon Rangefinder S cameras, includes Nikon S, Nikon S2, Nikon S3, Nikon SP etc