Daimaru (大丸) is a Japanese department store which still exists (2009) and traces its roots back to 1711. Its Osaka store, founded in 1726 at Shinbaibashi, announced the Baika 3×4cm camera with focal plane shutter in 1937.
- 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.
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