Tsuji Yoshiharu Shōkai or Tsuji Yoshie Shōkai (辻良栄商会) was a Japanese company active in 1939, which sold camera accessories such as the Ideal lens hood.
- ↑ The first name 良栄 has at least three possible readings: Yoshiharu, Yoshie and Yoshiei.
- Nihon Shashin Kōgyō Tsūshin (日本写真興業通信). Hyaku-gō goto jūkai no kiroku (百号ごと十回の記録, Ten records, every hundred issues). Tokyo: Nihon Shashin Kōgyō Tsūshin Sha (日本写真興業通信社), 1967. No ISBN number. Advertisement on p.54, corresponding to p.20 of the December 15, 1939 issue.