FERGUSON, James. 'Mechanical Paradox' Orrery. [London, late 18th century]. A rare portable orrery with tellurium motion, the gilt, silvered and lacquered brass tellurium motion with 1 3/8 inch diameter wooden ball globe, plain papered gores, unsigned, the gilded sunball with sun ray pointer, with ebony handle on the rotation arm, the base plate an engraved paper disc with zodiac and calendar scales, stars and other celestial information, additional turning key geared to central drive, the orrery mounted on a ninteenth century mahogany plinth base, with glass domed cover, diameter 13½ inches (342mm). Millburn pp104-106.
FERGUSON, James. 'Mechanical Paradox' Orrery. [London, late 18th century]. A rare portable orrery with tellurium motion, the gilt, silvered and lacquered brass tellurium motion with 1 3/8 inch diameter wooden ball globe, plain papered gores, unsigned, the gilded sunball with sun ray pointer, with ebony handle on the rotation arm, the base plate an engraved paper disc with zodiac and calendar scales, stars and other celestial information, additional turning key geared to central drive, the orrery mounted on a ninteenth century mahogany plinth base, with glass domed cover, diameter 13½ inches (342mm). Millburn pp104-106.
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
