Details and Image
|Date||Scale Length||Area of Use
|Polar||Coradi - Weber No. 4313||Coradi||Switzerland||German silver and brass||ca. 1940||N/A||General area measurement
Notes: "This polar planimeter was made by G. Coradi in Zurich, Switzerland, and sold by F. Weber & Co., which was and still is a giant in the art supplies business, and for a while ventured into the engineering supplies market, selling slide rules made by Nestler and planimeters by Ott and Coradi."