This is a Nikon 135mm F2.8 AI lens in fair condition. The glass is clear, clean, and scratch free. There iris action is very slightly sluggish, so I recommend stopping down manually before releasing the shutter. The focus action is a little tight, but usable. Some previous owner engraved his initials on the barrel. Despite all this it should deliver sharp images with proper use. Priced accordingly.
Price: $18 plus shipping