Advertising & Documentation Archive
Monroe 1880 Operating Instructions
Sincere thanks to Jeff Ritow for donation of this document to the museum
Front cover of Monroe 1880 Operating Instructions
The Monroe 1880 was the "top of the line" of Monroe's 1800-series calculators.
See the exhibit on the Monroe 1860
for information on a similar machine. Monroe's 1800-series calculators
are OEM versions of calculators made by Computer Design Corporation (Compucorp).