Schneider Kreuznach Comparon 300mm 5.6 Lens parts only

Description

Front and back half of an enlarging lens, missing the middle part with f stops.
Focal length 300mm and f: 5.6
Parts only, not usable as it is without the very important middle part, also
the front surface has an unusual type of haze that renders it unusable.
The individual parts would make an impressive paper weight.
Total weight 0.57 kg, or 1.25 pounds.
Free shipping within continental USA