Published in Autumn 1987 Zeiss Historica Journal
Author: Paul Edstrom
See Page 4 – 6.
The author builds upon a prior ZHS article on the Contaflex I by Jan Bisschops in Autumn 1986. The article is well illustrated and mentions the change in lenses from Zeiss Opton to Carl Zeiss.
To go to the Journal itself, click on the year 1987 in the first line above.