Keuffel & Esser Planimeter advertisement

Prev
Next
Image Zoom
  • Details
  • Description
Date
1955
Credit Line
Courtesy of Clark McCoy
Copyright Owner
© Keuffel & Esser Co.
Keywords
Slide rule; Keuffel & Esser Co.
Object ID
500004492

Keuffel & Esser produced drafting supplies and mathematical instruments. Best known for their slide rules, K&E also made planimeters. But the firm didn’t survive the transition to electronics. After 120 years, it closed in 1987.