Katsura Seisakusho (桂製作所, meaning "Katsura Works") was a manufacturing plant in Kyōto, which produced some examples of the SK-100 aerial camera during World War II. It is said that the plant was set up in 1944 by Mitsubishi Jūkōgyō (三菱重工業, Mitsubishi Heavy Industries), to produce aero engines. After World War II, it was fully merged into Mitsubishi Jūkōgyō, and made civilian engines as Mitsubishi's Katsura plant.
- ↑ 1.0 1.1 This page of the Topcon Club.
- ↑ History of Camp Katsura.
- Type 100 Small Aerial Camera (SK-100) among other cameras in the Topcon Club website
- History of Camp Katsura at Kyōto Rakusei Sanpo Manual