NIKKOR Safety Cover for Medical-Nikkor Lens

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Production year 1970
Type 2
Black plastic, marked «NIKKOR»
«F» embossed on rear side
Since the camera body is at ground potential relative to the ringlight power supply voltages, the flash contact on the camera accssory shoe should not be touched and the accessory shoe safety cover should be fixed in place.
Original maker's box
Matches Medical Nikkor 200mm f/5.6 lens No.111920