The following are excerpts from one of Dr. Paul Harrison’s excellent and comprehensive publications, A Series of Papers on the Early History and Development of Industrial Time Recorders. More information on his work can be found via the Links page.
Specifications of all models manufactured by Gledhill-Brook from 1912 to 1964
An early leaflet showing the key recorder and the very rare Universal model
A leaflet for the standard Attendance card recorder, with card racks
A 1920s leaflet for the Empire Attendance, and the Clipper Attendance and job timer models, showing the card layouts for each
The gallery below displays pages from a 1920s Gledhill-Brook leaflet containing illustrations, specifications, and prices for a range of available models: