Mechanically in excellent condition with easy and precise focusing.
The aperture is nice and snappy.
The lens optics are clear and without any scratches,haze or fungus.
The internal lost paint is very typical for this lens and won't affect image quality. (two photos I took attached) 

Made in East Germany. This is the later Black version of the lens.
Originally Pentacon Six mount and will fit SLR and DSLR cameras with the use of an appropriate adapter.

Please check the pictures carefully because that's part of the product description. 

I'm not a camera shop or professional seller, no returns accepted.