Saica, Kiku 16, Gem 16 and Halmat
This article is a stub. You can help Camera-wiki.org by expanding it.
Bibliography
- Pritchard, Michael and St. Denny, Douglas. Spy Cameras — A century of detective and subminiature cameras. London: Classic Collection Publications, 1993. ISBN 1-874485-00-3. Pp.75, 77 and 79 (the Halmat is spelled "Kalmet" or "Kalmat" by mistake).
- Sugiyama, Kōichi (杉山浩一); Naoi, Hiroaki (直井浩明); Bullock, John R. The Collector's Guide to Japanese Cameras. 国産カメラ図鑑 (Kokusan kamera zukan). Tokyo: Asahi Sonorama, 1985. ISBN 4-257-03187-5. Items 5038, 5047 and 5129.