M42 Auto Revuenon 55mm 1:1.7

Overall good condition M42 portrait lens; second hand; minor dust inside that should not show up in the photos.

Specifications:
Format: 35mm SLR
Type: Prime lens
Focusing: Manual Focus (MF)
Lens mounts:  M42
Max/Min aperture: 16 / 1.7
Blades: 6
Minimum focusing distance:  0.5m
Filter size: 55mm