There is mold inside the lens and spots on the surface of the rear element. (See photos 4, 5, 6, and 7) There is some small dust and debris inside. The helicoid rotates. The aperture opens and closes. Front and rear caps are not included. For M42 screw mount. There are signs of use on the exterior, with scratches and paint剥がれ (peeling). I have included many images of the lens exterior, so please check the condition. Everything in the photos is included.