K.K. Sukiya Kamera Shōkai (㈱スキヤカメラ商会) was a Japanese sales company in the early 1950s. It distributed the Centre Six inexpensive folder in late 1951; its address at the time was Chūō-ku Ginza Nishi 5–5 (中央区銀座西5–5) in Tokyo. Nothing else is known about this company.
- 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.