Purchased by myself as a photographic resale item because it was a collectible & and usable.

ITEM: big black Russian reflector lens in mintish condition. Focus, smooth as silk. Optics, amazing, no scratches,  dust haze, really as good as I've ever seen. Body, scratch free.

           This is a super telephoto 1000mm f=10 lens. The last photo is for experienced astronomers for how to modify the lens to perfection. The lens has a sighting pointer and goes well past infinity for deep sky shots.

      

The T mounts can be changed to any digital mirrorless mount you wish sold on ebay. Currently T m42.  3 colored filters one is UV clear.  Amazing lens for reasonably cheap price.