Comptometers - Documents
The history of Felt & Tarrant would not be complete without a review of the many documents that accompanied events thruout the 40+ years of design change and 80+ years of life of the shoebox Comptometer.
As is so often the case, we are indebted to Turek's "Origin of Modern Calculating Machines" for many of these reproductions.
First bill for tools
U.S.Treasury testimonial - Rosecrans
U.S.Treasury testimonial - Elliott
Equitable Gas Light & Fuel Company
Chicago Gas Light & Coke Company
Letter to City of Springfield
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