dioptric adjustment nozzle plus 2 36mm USSR for Industar-50 Industar-22 FED box

Dioptric adjustment (nozzle)
36mm, +2
KMZ, USSR
with box

Very good condition. Fully operational. There are no cleavages, scratches or fungus. There is a bit microdust at the edges. Box is original.

Lenses "Industar-50" and "Industar-22" are not included and shown as an example of mount.

This nozzle has 36mm mount and is designed for popular USSR rangefinder lenses: "Industar-50" (both for rangefinder and SLR), "FED", "Industar-22" and others. Filter does not have a thread and is set on the lens with friction force only (close-up). So, if a lens has a strong dent, this filter is probably will not be fixed firmly.

The filter is set easily at my lenses. The filter has three claws at the rim which regulate the lens capture. If necessary, bend them a bit inside and they will fix the filter firmly.
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Weight - 7 g (22 g with box)
Mount (mm) - 36
External size (mm) - 37.5x8.5 
Box external size (mm) - 47x16