Published in Spring 1999 Zeiss Historica Journal
Author: Larry Gubas
See Page 14 -15.
An insight into the serial number structure and records from 1890 to 1944. This was based on research prior to the discovery by Dr. Wimmer of the Carl Zeiss Jena archives of the card catalog system that has since been documented in a spread sheet by Mr. Harmut Thiele.
To go to the Journal itself, click on the year 1999 in the first line above.