"Operating instructions – Monroe Calculating Machine – Hand Operated LN Models". See also alternate version .

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Monroe Contract No. GS-00S-15300, the 1958 price list for the United States Government. Describes and depicts all the models of Monroe calculator available to the government in 1958, along with prices, discounts for volume, and prices for rental and maintenance. Found on Ed Thelen's site (ed-thelen.org), this document was originally obtained from LaFarr Stuart, who obtained it from a Monroe salesman.

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Monroe Form 994-S, a table of multiplying factors for square roots, along with instructions for use. See also: 991-S (Table of dividing factors for square roots) 769-S (Machine methods for the extraction of square root) 1191-S (Simplified methods for extracting roots) 1228-S (Simplified method for extraction of square root)

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Monroe Form 991-S, a table of dividing factors for square roots, along with instructions for use. See also: 994-S (Table of multiplying factors for square roots) 769-S (Machine methods for the extraction of square root) 1191-S (Simplified methods for extracting roots) 1228-S (Simplified method for extraction of square root)

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Monroe 912-SS, a list of Federal Supply Identification Stock Numbers and corresponding Stock Numbers of Army, Air Force, and Marine Corps, corrected as of June 30, 1957.

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Monroe Form 1038-S, describing how to perform statistical calculations such as means, standard deviations, linear correlations on the general CAA-10 electromechanical calculator and on the statistics-oriented CAA-10-3-S.

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Article in Joe Mitchell Chapple's National Magazine, Apr 1919, about the Monroe Calculating Machine Company and Jay Randolph Monroe.

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Monroe publication B-102, an office practice course using the Monroe LN Educator mechanical calculator. This copy is the 26th printing, Dec 1961.

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Ad by LaSalle Extension University about how J. L. Aldrich of Fargo, North Dakota, went from order clerk to district manager for the Monroe Calculating Machine Company. With quote from J. R. Monroe.

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Book 6 of 6 of a service training manual for the Monroe Calculating Machine Company. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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The Monroe Calculating Machine (Office Machine Practice series) By Chester H. Katenkamp The Gregg Publishing Company 1931 58 page stapled book 142mm × 204mm

Topics: Mechanical calculator, Monroe, Instruction manual

A short article, "Leaps from 13th floor of Woolworth Building" from the Los Angeles Evening Herald, 19 Feb 1919, Page 11. A Monroe salesman, Richard Dwight Hutchins, had leapt to his death from a 13th floor Monroe office.

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Monroe Form 1228-S, a double-sided card on how to extract square roots, with a table of factors.

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Instruction manual for the Monroe D through G model mechanical calculator.

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Monroe publication 1045-S, instruction manual for the LN model of mechanical calculator. This is the September 1958 printing of the manual.

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Monroe publication GS-713, instruction manual for the Simplex Electric Models 410-11-011 and 408-11-011 mechanical printing adding machines.

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Monroe publication 1231-S, an instruction manual for the LA-9 mechanical calculator.

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Monroe Publication 1250-A, a sales brochure for the Monroe 820, 920, 950, 990, 570 and 150 electronic calculators. Unknown year, but probably the 1970s.

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Monroe Form 769-S, how to compute square roots on a Monroe mechanical calculator.

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Monroe Publication B-243, about a study performed by Dr Howard F Fehr on whether the use of calculators in the classroom made students enjoy arithmetic more.

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Monroe Publication 1191-S, on how to extract square roots, cube roots, and higher roots, with tables for up to 10th roots.

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Monroe Publication B-251, a better way to teach arithmetic with the Monroe Educator Calculating Machine.

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Pages 3 and 4 of a Monroe Calculating Machine Company newsletter from May 1971. Page 4 in particular describes the history of the L model mechanical calculator, from 1929 to 1971.

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Monroe Machine Service Bulletin No. 24-B, illustrating parts used in improvements, additions and changes to the K series "2" and "2A" mechanical calculators up to 15 April 1926. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 24-A, describing the retrofit of an improved counting finger on the K series "2" and "2-A" mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 24, illustrating the assembly and adjustment of K series "1" and "2" mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 33, complaining that managers and salesmen do not know about machine service bulletins, specifically MSB 24. The main office especially felt that salesmen could better answer questions if they studied the MSBs. The bulletin concludes with the instruction that managers and salesmen should carefully read MSB 24, unless they've already done that, in which case they didn't have to read it again. Compliance was to be verified by the signing and sending of a card...

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Monroe Machine Service Bulletin No. 32, describing a fix for the condition where repeated carriage shifting from extreme to extreme can cause the carry mechanism to fail on K series "2" mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 34, an illustrated service manual for the K0 and KA0 model mechanical calculators, including drawings of all tools required. In preparing this manual, the engineers completely disassembled, reassembled, and adjusted a K0 and KA0 16-place machine, documenting each step along the way. MSB 34-A, dated 15 June 1926, is included in this copy. It is a one-page bulletin intended to go with plate 22, giving a sequence of selecting gears which helped to standardize...

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Monroe Machine Service Bulletin No. 125, describing four improvements to KAS, KAA, C and E model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 114, describing the fix for the KASC model mechanical calculator adding before shifting. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 112A, describing adjustments for the clear-out lock for KA "C" and "E" model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 112, describing retrofit of a new lockin g mechanism to prevent the clear-out mechanism from locking up under rapid operation of the clear keys of KA "C" and "E" model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 108-B, a price list for KASC model mechanical calculators. This eight-page list superseded the original seven-page price list from bulletin 108, whose list field offices were instructed to destroy. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 108-A, description and retrofit instructions for plus, minus, and shift key locks on KAE and KASC model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 108, describing adjustment of KASC model mechanical calculators, with parts and assembly list. This bulletin does not contain the original seven pages of prices for KASC parts. Bulletin 108-B superceded these prices, and the field offices were instructed to destroy the original price list. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 48, describing the difference between K "3" series and other K model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 135, a parts and price list for KA 203-13, KAS 203-13, KA 263 and KAS 263 model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 97, describing installation of additional carrying and counting fingers in the KAS 203-13 model mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 50, collecting all changes in design and new features in the K model mechanical calculator up to date. There is no cover letter in this copy of the bulletin, but the date is estimated to be between May and December 1927 based on the dates of surrounding bulletins. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company

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Monroe Machine Service Bulletin No. 48A, a supplement to MSB 40, containing the price list for parts and assemblies of the "3" series model mechanical calculator. The field office was instructed to destroy the "3" series parts and assembly list in MSB 48. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company

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Monroe Machine Service Bulletin No. 104, describing a change in the design of, and the replacement of, a cam in the K model mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 120, describing installation of a stronger spring for the nonrepeat key on LA and MA model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 113, describing installation of insulation on a connector in the LA model mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 129, comprising the motor parts and price list for the K, LA, and MA model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 127, describing the second version of the motor power unit for MA mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company

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Monroe Machine Service Bulletin No. 106, describing the removal and reassembly of a more integrated motor power unit for LA mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 130, stating that extra manual crank handles for the automatic MA mechanical calculator should be sent back to the main office. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 205, instructions for installing condensers for DC motors on the LA, MA, and Gardner mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 116-A, supplementing plate #12 in MSB 116. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 116, an illustrated guide to disassembling, assembling, and adjusting the MA-213 model mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 126, describing a new feature for clearing the dial on MA model mechanical calculators. Part of the retrofit would be done by the Monroe company, part by field technicians. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Form MO-96, a programming manual for the Monrobot XI general purpose computer. A general overview about this computer can be found on Wikipedia . This is the January 1964 edition.

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Monroe Special Service Letter 106, 400 series machines red print feature, describing installation of the red print special feature. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Book 4 of 6 of a service training manual for the Monroe Calculating Machine Company. Download the file to see the foldouts at the end -- the Archive's viewer doesn't seem to be able to handle different-sized pages very well. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Book 2 of 6 of a service training manual for the Monroe Calculating Machine Company. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 101, describing how to install and dismantle motors on the LA models of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 62, describing a change and adjustments to the tension device on the carriage shifter for the K models of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 45, complaining that KAA models of mechanical calculator were being sent to the main branch improperly packed resulting in broken pieces and machines in "deplorable condition". Also, some machines were being sent without the identification form 27-M. Contains instructions on how to pack the machines properly for shipment. This bulletin is unique in the amount of exasperation, sarcasm, and exhortation displayed. This copy was scanned from a set of...

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Monroe Machine Service Bulletin No. 40R, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40P, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40N, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40G, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40F, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40E, containing a parts a price list for full automatic and 3-series model K machines. This list was intended to obsolete the list originally provided in MSB40 and MSB48. Note that there is a second MSB 40E that was published 18 months earlier. I have called that document MSB 40E. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40E, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. Note that there is a second MSB 40E that was published 18 months later. I have called that document MSB 40E prime. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40D, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40C, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 36D, describing a required adjustment when installing a new start and stop switch for the K models 1A, 2A, 1AA, and 2AA (but not 0A) of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 100-C, specifying changed voltage range for a motor used in the LA model of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 95C, the illustrated parts and assemblies price list for the L model of mechanical calculator. The models covered are: L 1207 L 160 and L 200 LA 160 and LA 200 L 160-X and L 200-X LA 160-X and LA 200-X This MSB obsoleted and superseded MSB95 and MSB95A, and so ordered that they be destroyed. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40B, containing plates 47 - 51 as an addition to MSB40, showing the symptoms when various springs in the K 1AA and 2AA models of mechanical calculator are unhooked. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40A, containing plate 35A for insertion between plates 35 and 36 of MSB 40. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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Monroe Machine Service Bulletin No. 40, describing the mechanism, disassembly and reassembly of the K models 1AA and 2AA of mechanical calculator. Note that there is a parts list of 9 pages referenced in the cover letter. The subsequent MSB 40E-prime contained an updated parts list, and specified that the parts list in this MSB be destroyed, and so those pages no longer exist in this MSB. Note that MSB 40E-prime is not the same as MSB 40E. There were actually two MSB's published under number...

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Monroe Machine Service Bulletin No. 36C, describing installation of a new start and stop switch for the K models 1A, 2A, 1AA, and 2AA (but not 0A) of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.

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