FINE PAIR OF NEWTON AND SONS LATE GEORGE III TWENTY-INCH TERRESTRIAL AND CELESTIAL TRIPOD MAHOGANY LIBRARY GLOBES, London, second-quarter 19th century,
The terrestrial globe, dated 1836, represents the most up-to-date geographical finding; the celestial globe, dated 1838 yet calculated to 1830 depicts the known heavenly bodies and the constellations; each with an inscribed brass meridian ring and an hour dial at each pole, and rotate both within, and at right angles to, the meridian circle line, the central engraved paper horizon on each is graduated in degrees of altitude and azimuth (the horizontal angle of a bearing measured clockwise from the north); also with compass bearings; the celestial also with a diagrammatic depiction of the sun's apparent path through the signs of the Zodiac, days and months, further detailing the minutes and overall length of time before and/or after sunset and sunrise; each globe raised on four mahogany quadrant supports connected to a turned pedestal raised on three down-swept legs, terminating in brass casters.

Height to median ring 32 in. (81.28 cm.), Diameter of each globe 20 in. (50.80 cm.)

Overall good condition with some restoration to legs and pedestals. Some printed lithography worm.