Semi Adler and Adler III

Bibliography

Original documents

• Asahi Kōgaku Kōgyō. Olympic Products. Catalogue published c.1938 (date not indicated). Document reproduced in this Flickr set by Rebollo_fr.
• "Kokusan shashinki no kōtei kakaku" (国産写真機の公定価格, Set prices of the Japanese cameras), listing Japanese camera production as of October 25, 1940 and setting the retail prices from December 10, 1940. Published in Asahi Camera January 1941 and reproduced in Shōwa 10—40nen kōkoku ni miru kokusan kamera no rekishi (昭和10〜40年広告にみる国産カメラの歴史, Japanese camera history as seen in advertisements, 1935—1965). Tokyo: Asahi Shinbunsha, 1994. ISBN 4-02-330312-7. Pp.108—9. Type 3, section 3A.
• Shinkō Graph (新光グラフ) August 1938. Advertisement by Asahi Kōgaku Kōgyō on p.39.
• The British Journal Photographic Almanac 1938, edited by Arthur J. Dalladay. London: Henri Greenwood & Co., Ltd. Publication date not indicated, certainly late 1937. Advertisement by Asahi Bussan on pp.694–5.

Recent sources

• Asahi Camera (アサヒカメラ) editorial staff. Shōwa 10–40nen kōkoku ni miru kokusan kamera no rekishi (昭和10–40年広告にみる国産カメラの歴史, Japanese camera history as seen in advertisements, 1935–1965). Tokyo: Asahi Shinbunsha, 1994. ISBN 4-02-330312-7. Item 6.
• McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). P.828.
• 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. Item 1028–30.
• Tanaka Masao (田中政雄). "Senzen no kamera 2: Supuringu kamera" (戦前のカメラ2・スプリングカメラ, Prewar cameras 2: folding cameras). Kamera Rebyū: Kurashikku Kamera Senka (カメラレビュー クラシックカメラ専科) / Camera Review: All about Historical Cameras no.14, October 1989. No ISBN number. Rikō kamera no subete (リコーカメラのすべて, special issue on Ricoh). Pp.16–9.

The camera listed in Sugiyama as an Adler III is certainly a Heil.

Links

In English:

• Adler C at Photoethnography

In Japanese:

• Adler III in the Ricoh camera list of the Ricoh official website (contains mistakes)
• Advertisement for the Riken camera range (on the left) published in the 26 February 1939 issue of Sunday Mainichi, reproduced in the camera company page of the Gochamaze website