Instruction Card for Robertson-Amsler Polar Planimeter

Description
These salmon-colored card fragments were received with MA*333766. They give partial instructions for taking measurements with an "averaging planimeter." The reverse side of the card has a drawing of a connector for a steam engine indicator and several user testimonials.
Location
Currently not on view
Object Name
sheet
date made
ca 1900
maker
James L. Robertson & Sons
Physical Description
paper (overall material)
Measurements
overall: 8.5 cm x 9.5 cm; 3 11/32 in x 3 3/4 in
place made
United States: New York, New York
ID Number
MA*302380.02
accession number
302380
catalog number
302380.01
subject
Science & Mathematics
Mathematics
Engineering
Planimeters
See more items in
Medicine and Science: Mathematics
Planimeters
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of R. J. Russell

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Approved comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about your own artifacts or tell you how much they are worth.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Image CAPTCHA
Enter the characters shown in the image.