A BRASS ARMILLARY SPHERE POSSIBLY ITALIAN 16TH CENTURY The 8-inch sphere composed of continental brass with a later brass ecliptic engraved with scales for zodiac [0°]-[360°], graduated unnumbered equator divided to 1° by alternating groups of 10°, two similarly graduated colures through equinoxes and solstices, rings for Arctic Circle, Tropic of Cancer, Tropic of Capricorn, Antarctic Circle all punched with graduations every 10°, two outer rotating colures meeting at equator, central axis with wooden Earth ball. Supported in 20th century ebonised oak stand with hour disc and pointer. 19½ x 10¾ x 10¾in. (49.5 x 27.5 x 27.5cm.)
A BRASS ARMILLARY SPHERE POSSIBLY ITALIAN 16TH CENTURY The 8-inch sphere composed of continental brass with a later brass ecliptic engraved with scales for zodiac [0°]-[360°], graduated unnumbered equator divided to 1° by alternating groups of 10°, two similarly graduated colures through equinoxes and solstices, rings for Arctic Circle, Tropic of Cancer, Tropic of Capricorn, Antarctic Circle all punched with graduations every 10°, two outer rotating colures meeting at equator, central axis with wooden Earth ball. Supported in 20th century ebonised oak stand with hour disc and pointer. 19½ x 10¾ x 10¾in. (49.5 x 27.5 x 27.5cm.)
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