A fine and unusual mid 17th-century (?)German gilt-brass armillary sphere
A fine and unusual mid 17th-century (?)German gilt-brass armillary sphere, unsigned , constructed from two fret-cut gilt-brass 12.7cm. (5in.) diameter hemispheres joined at the equatorial and comprising polar, tropic and equatorial rings and four colures, unengraved, and an ecliptic band graduated in 12x 1-30°, numbered every 10° with 1° subdivisions, engraved with sigils and pictorial representations for the houses of the Zodiac and with a movable clasped band with a protruding gnomon, the central axis with an ungilded Earth ball, the sphere held in a split meridian circle with pointers at the terminating points of the break at the level of the tropic circles to read off the ecliptic scale, the North Pole with an engraved 0-90° declination scale, numbered every 10° with 1° subdivisions, and an hour dial above numbered 1-12 (x2) with a movable arrow pointer, mounted in a semi-circular support with screw clamp, raised atop a figure of Atlas with screwed-on fig leaf with detail beneath, standing on a circular gilt-brass base fixed to a hexagonal slab of red marble set into a stepped hexagonal ebonised wooden plinth -- 37.4cm. (14¾in.) high
A fine and unusual mid 17th-century (?)German gilt-brass armillary sphere
A fine and unusual mid 17th-century (?)German gilt-brass armillary sphere, unsigned , constructed from two fret-cut gilt-brass 12.7cm. (5in.) diameter hemispheres joined at the equatorial and comprising polar, tropic and equatorial rings and four colures, unengraved, and an ecliptic band graduated in 12x 1-30°, numbered every 10° with 1° subdivisions, engraved with sigils and pictorial representations for the houses of the Zodiac and with a movable clasped band with a protruding gnomon, the central axis with an ungilded Earth ball, the sphere held in a split meridian circle with pointers at the terminating points of the break at the level of the tropic circles to read off the ecliptic scale, the North Pole with an engraved 0-90° declination scale, numbered every 10° with 1° subdivisions, and an hour dial above numbered 1-12 (x2) with a movable arrow pointer, mounted in a semi-circular support with screw clamp, raised atop a figure of Atlas with screwed-on fig leaf with detail beneath, standing on a circular gilt-brass base fixed to a hexagonal slab of red marble set into a stepped hexagonal ebonised wooden plinth -- 37.4cm. (14¾in.) high
.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
