A later near mint example of Nikon 35mm film camera to attach to their microscope Based on a Nikkormat body variant, it uses a M39 lens mount. It has a built in dark slide and this model allows the choice of both full frame 24x36mm or half frame 24x18mm. Smooth rewind etc. I have used it as a pinhole camera in the past, utilising a M39 body cap. Yes, its inbuilt dark slide can act as its shutter! Even has a tripod mount in its base! Unusual item for collection and/or display. ( or as a beautifully built pinhole camera )