A vintage Soviet polar planimeter – a mechanical cartographic measuring instrument manufactured by the Geoinstrument plant (c. 1950s).
This authentic polar planimeter was manufactured in the USSR by the renowned Geoinstrument plant. A planimeter is a precise mechanical analog integrator used by engineers, cartographers, and surveyors to calculate the area of irregular shapes on maps, drawings, and diagrams.
The set includes an original vintage wooden storage box with a small metal stamp plate, a heavy polar arm, a tracing arm with precise vernier scales, and a calibration ruler.
Condition: The instrument is in excellent vintage condition with signs of aging. The box is more worn.
Ideal for collectors of antique scientific instruments, industrial decor items, or as a unique gift for architects, cartographers, and civil engineers.