Nikon 8.5cm (85mm) f/2 in Leica Thread Mount, rangefinder lens, manual focus prime. Can be used on Barnacks, Leica M film and digital bodies or adapted to mirrorless.
Gives lovely portraits with a Sonnar glow and skin tones.
This is a decent copy with some minor flaws
Glass has some coating & cleaning marks, small dust in the optics. Do look at photos for condition.
Focus is a little on the heavy side
Aperture - clicks snappy, blades have some oil on them
All in all a decent user but with a lens this old from the 50s I would always recommend a service.
Also listed elsewhere on forums.