Pre-war wide angle lens produced by Carl Zeiss Jena. Feet scale. About 1750 pcs produced. Lens will interfere roller of rangefinder so that it cannot be usable with Leica M camras through adapter. Good to use with degital mirrorless camera. Comes with geuine caps. Slight signs of use on barrel yet still in very clean condition. Fully servivced in 2021. Excellent working condition. Coupling with rangefinder. Faint deterioration of glass. No major cleaning marks.