Curvimeter (0696)
Index: 0696
Year: ?
Maker: ? Germany
Dimensions: 12.5 x 4.5 x 1.5 cm (box)
Info
Curvimeter (opisometer) to determine the length of an arbitrary curve. Mostly for determining the length of a trip or distance on a map. To this reason, the curvimeter has different scales on the dial. On this meter, the scales are on the first side: 1/20000, 1/40000, 1/80000 and 1/100000. On the other side 1/25000, 1/50000, 1/75000 and 1/200000.
Still commercially available.
References/Links/More Info
Mathematical Instruments - Map Measurers
