Beschreibung:

A George III orrery
W & S JONES, 1794
A George III orrery W & S Jones, 1794 Designed for the NEW PORTABLE ORRERIE by W. JONES and Made and Sold by W. & S. JONES 30 Holborn LONDON , a 1½-inch globe made up of twelve hand-coloured engraved gores, with overlaid cartouche JONES LONDON , graduated equatorical, ecliptic and one meridian, Tasmania as a peninsula in New Holland , with brass twilight pointer and held above an angled ring to alter the height of the ivory moonball, a secondary ring graduated with the sigils for the houses of the Zodiac, and a disc showing the phases of the moon, on a complex multi-wheeled geared mechanism, at the centre the brass sunball mounted on the central axis, with planet arms for the ivory Mercury and Venus, and brass index pointer; detachable, ivory handled crank handle to mahogany horizon plate with hand-coloured engraved paper, graduated around the red-painted edge with days of the month and of the houses of the Zodiac with names, sigils and pictures, compass directions and degrees of amplitude and azimuth, the inner section with the two trade cartouches held aloft as banners by a pair of cherubim, A TABLE of the principal AFFECTIONS of the PLANETS Jan.y 1.st 1794 Published as the Act directs by W. & S. Jones detailing for each of the six planets nearest the sun for the year 1794 their distance from the sun, solar year, diurnal rotation, diameter and greatest elongation and parallax of those other than the Earth, held aloft by two figures, one reclining on a library globe, also with tables for the revolutions and distances of the satellites of Jupiter and Saturn, with a diagram entitled THE SOLAR SYSTEM with positions for each of the planets and dated from 1796 to 1810, raised on three short baluster-turned legs, contained in the original mahogany case. 12½in. (32cm.) diameter