Nice find for me from a collector in Japan. The first detailed sales brochure from Japan that included the Pentamatic I and II. This page is from the accessories part of the brochure.

A very complete listing of the lenses available (and prices) for the Pentamatic series from late 1960 or very early 1961. These lenses were built for Yashica by Tomioka Optical at their Tokyo factory. The only lenses missing are the original f/1.8 5.5cm lens (for the original Pentamatic) and the f/1.7 5.8cm lens for the model II. I have in my collection the 35mm, the 135mm, the 55mm and the 58mm.
