1761 ENGRAVING ARMILLARY SPHERE CELESTIAL & TERRESTRIAL COORDINATES antique

COLURES, TROPIQUES, CERLES POLAIRES, et LEURS USAGES

(Colures, Tropics, Polar Circles, and Their Uses)

by Royal cartographer Louis Brion de la Tour

Paris;  1761

part of educational geographical atlas (Atlas Methodique et Elementaire de Geographie et d'Histoire)

CENTRAL DIAGRAM DEPICTS A STYLIZED ARMILLARY SPHERE illustrating key CELESTIAL & TERRESTRIAL COORDINATES .
These bands mark out the Equator, the Tropics of Cancer and Capricorn. the Polar Circles (Arctic and Antarctic), and the Colures (the meridian lines passing through the celestial poles and the equinoxes/solstices)

size (framed, under glass) : 16 by 22"

Fold in the middle, very good
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