Title
Planimeter in caseCatalog Number
102732306Type
Physical objectDescription
Object is a polar planimeter in a fitted wooden case with felt lining. Inside the case was a post-it note reading "Planimeter to measure maps. from Lynn Groves 8/19/93".Manufacturer
Keuffel & Esser CompanyPlace Manufactured
GermanyIdentifying Numbers
Model number | 4242 | |
Serial number | 13193 | Label underside of lid |