Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Polar
Bushnell Polar Planimeter
Bushnell
USA
Chrome plated brass
ca. 1910
N/A
General area measurement

Notes: "This Bushnell polar planimeter was apparently sold directly by John S. Bushnell, as his name and address is on the box. The Bushnell planimeter is very recognizable with its tracing point in a circle, no multiplier wheel, and 90 deg. bend in the pole arm before being hinged to the tracing arm. The lack of a multiplier wheel limits the planimeter to measuring small areas."


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