Rear protective cap
for 42mm lens back, plastic
"KOMZ" plant, USSR

Very good condition. Cap has small signs of age and use.

Lens "Helios-44-2" is not included and shown as an example of mount.

This rear lens cap was supplied with "Jupiter-37A" lens with M42 mount. Of course, you can use it for any lens with M42 mount.

Material: plastic (bakelite)
Size (diameter*thickness): 46.5 mm*12 mm
To fit lens back - 42 mm
Weight - 7 g