Published in Spring 1981 Zeiss Historica Journal
Ronald K. Walker
See Page 9.
This was an early guide to the family of microscope manufactured by Carl Zeiss Jena. It is a one page narrative with some small illustrations. It was amplified some years later (2008)by a full sized book on this subject entitled, “A Survey of Zeiss Microscopes 1846 -1945” by Lawrence Gubas.
To go to the Journal itself, click on the year, 1981 in the first line above.