Three Legged Map Compass - Brass, Steel - 1880

Antique Metal Three-Legged Point Map Divider Compass An unusual three legged compass. Three-legged compasses, also called spherical compasses or globe compasses, served to transfer onto a map the positions of places taken on a globe, by measuring the distances between three points. Also used to reproduce drawings or maps to scale. Rare Antique Metal And Brass Three Point Compass Map Divider Drafting Tool: This is a very rare custom and hand made antique three point map divider drafting tool. Length: 13 cm. The box is 17 by 5 cm The left little hook is missing. Information source Wikipeda.