|Mulix. (Image rights)|
Tanaka is a very common family name in Japan, and this company was surely not related to the postwar Tanaka Kōgaku, maker of the Tanack cameras.
- "Kokusan shashinki no genjōchōsa" ("Inquiry into Japanese cameras"), item 90, lens items Lb36 and Lc26.
- "Kokusan shashinki no genjōchōsa" (国産写真機ノ現状調査, Inquiry into Japanese cameras), listing Japanese camera production as of April 1943. Reproduced in Supuringu kamera de ikou: Zen 69 kishu no shōkai to tsukaikata (スプリングカメラでいこう: 全69機種の紹介と使い方, Let's try spring cameras: Presentation and use of 69 machines). Tokyo: Shashinkogyo Syuppan-sha, 2004. ISBN 4-87956-072-3. Pp.180–7.