TKS

TKS shutter on a Frank Six
Picture courtesy of Robert Smith. (Image rights)

The TKS is Japanese leaf shutter, certainly made by Tōsei Kōki, mounted on the cameras made by that manufacturer. It has B, 1–200 speeds, flash synchronization and a self-timer. The name presumably stands for Tōsei Kōki Shutter.

List of cameras equipped (not all the models are concerned):

• Semi Frank
• Frank Six and name variants: Beauty Six (1950 model), Liner Six, Muse Six and Sanon Six