From the first batch of the 105mm f2.5 for Nikon F which was the same optical lens design as the Nikon rangefinder lens. Sonnar optics. You can distinguish the sonnar design from the later 105 mm lenses with the rear element being much smaller in diameter .

Flawless glass in this one . No fungus , haze or any discernible scratches . Smooth focus . Clean and precisce blades .The aperture ring is not so clicky but still ok. There is a slight dint on the filter rim but filters still screw on . Nikon rear cap , generic front cap

Sample photos taken through glass (raining) at f2.5, F5.6, f8 & f16 (APSC sensor)