Collection of pages from K&E catalogs for the 4250 family of Spherical Planimeters


The 4250 is an spherical planimeter with adjustable tracer arm. Refer to page 307 of the 1901 catalog for a good description of the instrument.

The following models are part of the 4250 family:


Of the catalogs available the 4250 spherical planimeter first appeared in the 1895 catalog.

Links to catalog pages for the 4250 family of planimeters: