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Instruction Book Monroe Calculating Machine

Instruction Book Monroe Calculating Machine Monroe Calculating Machine Co., New York 1922? 48 page stapled book 172mm × 235mm This is the manual for the Monroe calculator. It has no a copyright year, but the code on the last page suggests it was printed in 1922, which is consistent with the fact that it discusses both the model G and the recently introduced model K. It describes addition, subtraction, multiplication, division, decimals, discounts, and interest, followed by several tables. The contents are almost the same as the previous version, except that the model K is shown in detail on the first pages, and to make room for that the setting up and oiling instructions have been omitted, and were provided in a separate loose set of pages.

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