- ↑ Its address in 1929 was Tōkyō-shi Kanda-ku Jinbō-chō Kōsaten (東京市神田区神保町交叉点). Source: advertisement dated February 1929 reproduced in Nostalgic Camera by Toshio Inamura.
- Ars Camera. Advertisements by Kyūreidō in September 1921, February 1922, February and November 1927. No page numbers.
- Asahi Camera. Advertisements by Kyūreidō in March 1928 (p.A12), May 1929 (p.A14), July 1929 (p.A12), August 1929 (p.A13), September 1929 (p.A12) and February 1930 (p.A13).