Description

?? Genuine Antique Surveying Instrument

Offered for sale is an original mechanical planimeter, historically used by surveyors, engineers, and draughtsmen to calculate the area of irregular shapes on maps and technical drawings.

This is a pre-digital precision instrument, featuring a mechanical measuring wheel and dial system. By tracing the outline of a shape, the planimeter directly calculates area — a fascinating piece of early engineering.

?

Details * Mechanical planimeter (early pattern) * Precision metal construction * Engraved measuring arm * Tracing point and anchor weight present * Supplied in original velvet-lined fitted wooden case * Likely early–mid 20th century (c. 1910s–1940s)

?

Condition * Good antique condition * All main components present * Dial and wheel intact * Case shows age-related wear and patina * Not recently calibrated – sold as a collectible, display piece, or functional antique instrument

?

Ideal For * Surveying or engineering collectors * Antique scientific instrument collectors * Museum or heritage displays * Office, studio, or library display

This is not a reproduction — it is a genuine historical surveying instrument.