John Wolff's Web Museum

Reproduction Calculator Manuals.

Good-quality reproductions have been made from a number of vintage calculator operating manuals. The original documents have been scanned at high resolution and extensively edited to remove blemishes, improve legibilty, and correct the contrast of photographs. Printed copies can be made available for a nominal fee to cover costs and postage.

Please use the Enquiry Form for further information on any of the items listed.

Instructions for operating the Burroughs Calculator (1925 edition)
32 pages plus covers, A4 size, spiral bound.
31 illustrations, 5 pages of tables.

This is a very detailed and well-illustrated operating manual for the Burroughs key-driven calculator. The illustrations are of the 1925 model, but the instructions are applicable to any key-driven "Class 5" machine, including the later electric models. The same techniques can also be used on the Felt & Tarrant Comptometer. The manual covers fingering techniques, basic addition and subtraction, detailed procedures for multiplication and division, and examples of many types of business calculations. You should be able to pass the Comptometer Operators' Certificate Test after completing the course of instruction in this manual.

Facit C1-13Pinwheel Calculator - Handbook (1965 edition)
28 pages, fold-out, plus cover, A5 size, stapled.

This is a very detailed manual which explains all the controls and operations of the machine, with examples of many types of business calculations. The illustrations are of the mid-1960s model, but the manual is equally applicable to any Facit TK, NTK, or C1-13 machine.

MADAS product catalogue (1961 edition)
8 pages including covers, A5 size, stapled.

This catalogue gives illustrations and brief descriptions of the nine basic machines in the MADAS product range for 1961, from hand-cranked to fully-automatic. It mentions the variants of each model, and includes a list of optional features that were available on special order. The catalogue has been re-formatted from a long single sheet into an 8-page booklet. A copy of an Australian price list from 1966 is included.

Directions for Operating the MADAS Models 16LS, 20LS, and 20LZS (1952 edition)
8 pages including covers, A5 size, stapled.

This brief manual describes and illustrates the controls on the semi-automatic MADAS Models 16LS, 20LS, and 20LZS, and gives basic instructions for addition, subtraction, manual multiplication, and automatic division. The manual has been re-formatted from a long single sheet into an 8-page booklet.

Directions for the Proper Use of the MADAS Triplex 20 BTG and 20 BTZG
20 pages including covers and fold-out, A5 size, stapled.

This manual describes and illustrates all of the controls and functions of the fully-automatic MADAS Models 20 BTG and 20 BTZG. It includes detailed instructions for addition, subtraction, multiplication, and division, including decimal setting, handling of complements, and the use of the auxilliary register. The instructions are also applicable to the earlier Model ATG (except for the location of the negative multiplication control).

How to use your MADAS calculating machine
32 pages, plus illustrations and covers, A4 size (original 10"x8"), spiral bound.

This is a third-party manual written by Richard Goodman MA, BSc, from the Brighton College of Technology. It was printed in loose-leaf format and assembled in sections by the dealer to suit the type of machine purchased. There is a common introduction (3 pages), then one of three alternative sections to describe the manual, semi-automatic, or fully-automatic machines (13 pages plus illustrations), followed by a common section giving examples of quite complex commercial, mathematical, and statistical calculations (16 pages).

Millionaire Calculating Machine - operating instructions (c.1900)
24 pages plus covers, A5 size, stapled.

This manual describes and illustrates the controls on the Millionaire calculating machines, and describes the procedures for addition, subtraction, multiplication, and division. Example calculations include proportions, interest, and square roots.

Operating Instructions for Monroe Models LN-160 and LN-200 (1953 edition)
20 pages plus covers, A5 size, stapled.

This manual describes and illustrates the controls on the hand-cranked Monroe L-series machines. There are instructions and practice problems for addition, subtraction, multiplication, and division, and detailed instructions for locating the decimal points. Although written for the 1953 models, the manual is equally applicable to any of the hand-cranked Monroe machines from the 1920s to the 1970s.

Monroe machine methods for the extraction of square root (1953 edition)
12 pages plus covers, A5 size, stapled.

This manual describes three mechanical methods for the extraction of square roots. While written specifically for the Monroe calculator, the same methods can be used on any similar machine.

Instructions in Multo calculation (1959)
8 pages including covers, A5 size, stapled.

This manual describes the controls and operation of the Multo pinwheel calculators (Models 3, 13, 103, and 113). It covers basic operations (ASMD), back-transfer, short-cut and chain multiplication, and setting of decimal points. The manual has been re-formatted from a long single sheet into an 8-page booklet.

Let Original-Odhner do the work for you
20 pages including covers, 127x127mm, stapled.

This manual describes the features and operation of the Original-Odhner pinwheel calculator, with examples covering basic arithmetic (ASMD), proportions, discounts, percentages, and square roots. The illustrations show the mid-1950s Model 227, but the manual is equally applicable to any of the 200-series models (and in principle to any of the earlier models). The young lady on the cover is said to be Sweden's Miss World winner from 1952.

PLUS Rapid Adder - Operating Instructions
12 pages plus covers, A5 size, stapled.

This little manual was prepared for use in the PLUS training courses in Australia. It covers basic addition and multiplication in both Sterling and decimal systems, with practice examples and currency conversion tables.

Schubert Pinwheel Calculator - Operating Instructions
32 pages, fold-out, plus covers, A5 size, spiral bound.

This manual describes the Schubert models DRV, CRV, DW, and CW. It covers all the basic operations and gives examples of more complex business calculations. There are 4 pages of tables, including a table for calculating by grosses. (1 gross = 1 dozen dozen, or 144 items).

Walther WSR160 Pinwheel Calculator - Sales Information
6 pages, A4 size, loose leaf.

This is not an end-user manual, but rather a set of instructions supplied to the Walther salesmen to assist them in presenting and demonstrating the features of the machine. It covers all the controls and operations of the WSR160, including back-transfer, negative balances, short-cut multiplication, and extraction of square roots.

Walther WSR160 Pinwheel Calculator - Service Manual
24 pages plus covers, A4 size, spiral bound.

This factory service manual for the Walther WSR 110 and 160 pinwheel calculators contains detailed step-by-step instructions for disassembling, reassembling, lubricating, and adjusting the machines. There are 17 main illustrations showing all of the parts and operations involved (with part numbers), and a detailed cross-sectional drawing.