Wilhelm J.D. Keuffel (1838-1908)

Documents

Keuffel and Esser’s “‘Duplex’ Slide Rule” Advertisement

Keuffel and Esser’s “‘Duplex’ Slide Rule” Advertisement

This advertisement for a Cox model duplex slide rule explained the new features of the rule, described how it worked, and noted how it differed from the Mannheim style rule. View the document »

Keuffel & Esser Co. announcement of Montreal branch house opening

Keuffel & Esser Co. announcement of Montreal branch house opening

After opening stores in Chicago (1891), St. Louis (1894), and San Francisco (1901), Keuffel and Esser expanded into Canada, where they opened a store in Montreal in 1908. Source: # 2010.025.0001, Hoboken Historical Museum. View the document »

Student’s Alphabets. A Selection of Useful Alphabets, No. 3571

Student’s Alphabets. A Selection of Useful Alphabets, No. 3571

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Manual accompanying the Mannheim slide rule

Manual accompanying the Mannheim slide rule

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Instructions for Both’s Patent Section Liner & Scale Divider, no. 1159, issued by Keuffel & Esser Co., New York and Chicago

Instructions for Both’s Patent Section Liner & Scale Divider, no. 1159, issued by Keuffel & Esser Co., New York and Chicago

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Instruments for Forest Work, Keuffel & Esser Co., Manufacturers, New York

Instruments for Forest Work, Keuffel & Esser Co., Manufacturers, New York

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K&E Field Engineer’s Book 361

K&E Field Engineer’s Book 361

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Advertisement for Keuffel & Esser Co. in the program of the Hoboken Academy Fair

Advertisement for Keuffel & Esser Co. in the program of the Hoboken Academy Fair

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25th anniversary of Keuffel & Esser Co.

25th anniversary of Keuffel & Esser Co.

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In Memoriam. William J.D. Keuffel

In Memoriam. William J.D. Keuffel

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Cover page of the catalog of Keuffel & Esser Co., New York, 35th edition

Cover page of the catalog of Keuffel & Esser Co., New York, 35th edition

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