Lot 570T. Cooke & Sons Mahogany Sidereal and Meantime Longcase Regulator English, early 20th century
The 13½ inch engraved silvered dial signed T. Cooke & Sons, York and London, the outer ring indicating sidereal minutes and enclosing subsidiary dials for sidereal seconds, sidereal hours from I-XXIV and meantime hours, minutes and seconds, the substantial bronze movement with wheel train screwed to the collets, deadbeat escapement with Brocot type pallets and adjustable depth, maintaining power and stopwork, separately suspended compensated pendulum with cylindrical brass bob, the case with molded flat top, glazed front and sides, pierced spandrels to the door and the lower sides, raised on a paneled plinth, the glazed section hinged to the backboard, the interior with a barometer and thermometer, signed T. Cooke & Sons, Patent 31 Southhampton St. Strand, London 221. Height: 6 feet 6 ½ inches (1.9 m).
Provenance:
Time Museum, Inventory No. 948
Sold, Sotheby's, New York, Masterpieces from the Time Museum, October 13-15, 2004, lot 615, ($48,000, hammer price including buyer's premium)
In 1837, the year Queen Victoria ascended the throne, Thomas Cooke, an optical engineer, founded his eponymous firm in 1837 after the manufacture of his first achromatic lens. The firm produced fine, high-quality work, which included telesopes and surveying equipment for clocks. His sons formed T. Cooke and Sons following his death in 1868.

C 

Sold for $15,000
Estimate $15,000-25,000


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