1953 Report on the Tokyo Keiki Seizosho Company’s Aircraft Instrument Manufacturing, with Photographs.
Tokyo, Japan: August 1953. Cardboard binder containing thirty-six 8 ¼ x 11 ½ inch sheets; sixteen pages mimeographed and twenty with photos 4 ½ x 6 ½ inches and smaller. Tokyo Keiki Seizosho was established in 1896 and manufactured measuring devices. It soon began to manufacture navigation equipment, particularly compasses.....

