Rare Matching Set to Construct Armillary Sphere
"[Lot of 2] Circolo per Formare la Sfera Armilare [and] Circoli per Formare la Sfera Armillare", Cassini, Giovanni Maria
Subject: Cartographic Miscellany, Armillary Sphere
Period: 1795 (dated)
Publication: Nuovo Atlante Geografico Universale
Color: Hand Color
This matching set of sheets contain the pieces to construct an armillary sphere. The central terrestrial globe is in 12 segments and would have a diameter of approximately 5.5 cm if constructed. The overall armillary sphere would have a diameter of 28 cm. The various rings of the armillary sphere include the equator, the Tropic of Cancer, the Tropic of Capricorn, the zones, and the Polar and Antarctic circles. These sheets were published in Giovanni Maria Cassini's Nuovo Atlante Geografico Universale. Although Cassini's larger globe gores were published in his atlas, this set for an armillary sphere was not regularly included and are therefore quite rare.
A. Circolo per Formare la Sfera Armilare, (11.1 x 14.5").
B. Circoli per Formare la Sfera Armillare, (16.2 x 15.4")
Full original color on paper with a "Honig & Zonen" watermark. There is some offsetting, minor foxing, and light toning along the edges of the sheet.