A61/142

CURVIMETER

Germany, around 1950
A device for measuring the length of curves on maps. Dial with four scales, for maps 1:25000, 1:50000, 1:75000, 1:100000. Embossed mark: "F. C. Depose". In an original paper case with instructions for use. Size of the device 80x35 mm. Condition A-B. Slightly damaged paper case.

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