This is a very nice celestial chart of the northern skies. The constellations are finely engraved with allegorical figures, and the expected zodiac signs. The hemisphere is split and made up of two separated sheets joined here.
1743 Back Celestial Chart of the Northern Hemisphere
Premiere partie de l'Hemisphere Celeste Septentrional [with] Seconde Partie de l'Hemisphere Celeste Septentrional
Map Maker Specifics
J Back, 1743, Amsterdam
11.2 X 11.2 in. when joined.
Good. Slight offsetting. Beutifully handcolored. Issued folds. Attached to backing. Matted.