VINTAGE K & E (KEUFFEL & ESSER) CO. COMPENSATING POLAR PLANIMETER 620005
Comes with case and instruction manual
Serial No. 76 769
This German-made fixed-arm polar planimeter has a 4-1/2" metal and bronzed brass tracer arm and an 8" bronzed brass pole arm welded to a cylindrical weight
A carriage on the tracer arm has a white plastic measuring wheel, vernier, and registering dial
The carriage is marked with a serial number: 18939
The pole arm is marked: K+E KEUFFEL & ESSER CO. It is also marked: MADE IN GERMANY
A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape
The Keuffel and Esser Co., also known as K & E, was a drafting instrument and supplies company founded in 1867 by German immigrants William J. D. Keuffel and Herman Esser. It was the first American company to specialize in these products
Manufactured in the early to mid-20th century, these planimeters reflect the technological advancements in precision tools of that era.
They serve as a testament to the craftsmanship of analog instruments before the digital revolution.
This was originally “Property of University of Miami”. Shows inventory number of 120719