Nikon F reloadable film cassette, case, maker’s box
The cassette for the Nikon F, in connection with the F-36 motor drive was developed in the 1950s, apparently copied from Leitz. There are only a few features. In addition to the recess for the prong of the rewind knob, there are two short pins, two white–filled engraved index dots and the film speed reminder dial on the bottom. The broad slip of the outer shell (which has black paint or crinkle paint) is covered by the inner shell when the cassette is closed. The film speed reminder dial is set into the outer shell. The appearance of the film speed reminder dial changed during the production as a result of the increase in film sensitivity. A white-field engraved dot is the index mark for black & white films, and a red dot for colour films. The ASA scale design changed, sometimes having black and red lettering. The ‘E’ stand for empty. The film cassette for 36 exposures is supplied in a black plastic screw-lid container. This has the old Nikon lettering and the stylised Nippon Kogaku triangle logo embossed on it. The inside is lined with foam rubber to prevent rattling.