L39 mm mount. These are aluminium finish lenses in the slim version.
Lens Jupiter-11
mount M39
Focal Length: 135mm
Maximum aperture: F4.0 (closes to F22.0)
Number of the diaphragm: 12.
Minimum focusing distance: 1.4 meters (indicated on the lens)
CONDITION:
Lens in very good working condition. Optical and mechanical systems works properly and smooth. The glasses are clean without a fungus and without chips and scratches.Aperture and focus are working properly. Traces of oil are visible on the diaphragm blades.The lens is in its original condition, as it came from the factory in 1954, in its original yellow-bronze lacquer finish.