Isokawa Isocaflex Model I

Obscure in the extreme, Isokawa is credited with just this single model, so far as the standard texts are concerned. The same model appears on a few Japanese collectors' websites, but that's about it. One of those sites seems to say that there was a Model II with self-timer, but no one has any picture of it if so. The example in Sugiyama is stated to have an "Isunar" lens; mine is an "Isukor" as are the other web ones, but the difference may be a mistake. I suspect they may be rebadged Tri-Lausars anyway.

Taking lens is Isukor 75mm f3.5
Shutter unnamed 1 to 1/200*

* One Japanese website states the shutter is an "IKK"