Old Vintage Planimeter #4212 w/Cloth Bound Case By Keuffel & Esser Co.
For Map Analysis
Based on the neat case and design, this planimeter is probably pre-1930
It appears to be a complete instrument kit, but exact original contents is undeterminable
Measures up to 10 square inches in tenths and hundredths of a square inch
This relatively simple German-made stainless steel polar planimeter has arms of fixed length, with measuring wheels near the vertex of the tracer arm and a carrier for a stainless steel weight at the end of the other arm
The carrier is marked: KEUFFEL & ESSER Co.
A wooden case covered with black cloth is lined with purple velvet
A mark on the lid of the case reads: KEUFFEL & ESSER CO. N.Y. Keuffel & Esser sold this planimeter as the model 1111 from 1892 to 1901 and then as model 4212 from 1901 to 1936
CONDITION
Very Good
Very Good
Case shows small wear
No other issues noted
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