Monroe No. 1 High Speed Adding Calculator

From: Al Gallia
Email: awg01@agallia.com


I have an old Monroe "High Speed Adding Calculator" used by my uncle since the 1940's. It is apparently still in working condition. The bottom label says the following: ================================== Monroe Calculating Machine Company New York, U.S.A No. 1 100-135 Volts 0-60 Cycles A.C. 100-135 Volts D.C. ================================== No other model or part numbers, serial numbers are visible externally. I have posted photos at http://monroecalculator.blogspot.com/ I would appreciate any info on this machine like when it was made, functions and capabilities, etc. Is a manual available? Thanks.