Instructions for Amsler Polar Planimeters

This undated large 4-page booklet is titled, "Instructions for Using Amsler's Planimeters." It describes and depicts nine types of polar planimeter sold by the firm established by Jacob Amsler in Schaffhausen, Switzerland, in 1854, but in less detail than the German-language pamphlet, 1986.0316.09. As in that pamphlet, the arms of Types 1 and 2 are equal in length, even though some surviving examples and advertisements such as Dietzgen's 1904 and 1926 catalogs have a shorter tracer arm. Dietzgen also sold Types 4 and 6 in 1904 and Type 4 in 1926.
References: Catalogue & Price List of Eugene Dietzgen Co., 7th ed. (Chicago, 1904), 360–361; Catalogue & Price List of Eugene Dietzgen Co., 12th ed. (Chicago, 1926), 180–181.
Currently not on view
Object Name
date made
after 1912
maker; author
Amsler, Jacob
Physical Description
paper (overall material)
overall: 30.7 cm x 22.4 cm x .1 cm; 12 3/32 in x 8 13/16 in x 1/32 in
ID Number
accession number
catalog number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Norton Starr
Additional Media

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