This is an M42 mount camera and lens. The body is original black. Although it's old, it's in good condition, with a slight bump on the top plate and some touch-up paint next to the viewfinder. Unfortunately, the meter doesn't work. There's some dust and minor mold in the viewfinder, but the prism doesn't appear to be corroded. I've never seen this lens before, other than this one. When a strong light is shone through it, dust and minor mold are visible, but it's still usable as is.