A company called Itō Shōkai currently (2007) exists. It was founded in 1928 but it is based in Nagoya and is probably unrelated.
- ↑ Its address in 1942 was Tōkyō-to Kanda-ku Ogawamachi 2–14 (東京市神田区小川町二ノ十四).
- ↑ See the company information page of its official website.
- 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.