Knight on HorsebackHunt & Roskell

Knight on HorsebackHunt & Roskell, 156 New Bond St. , London, circa 1850, based on Thomas Earnshaw movement No. 499, circa 1830.Fine and rare gilt 8-day going brass carriage clock with detent escapement. ectangular, square columns with concave walls, side panels florally engraved, hinged back panel engraved with a knight on horseback, conical feet, hinged handle. Silvered, champlevé radial Roman numerals, outer minute track, center etched with foliate pattern, whole in an aperture of a gilt brass rectangular dial plate engraved with floral pattern. Blued steel "fleur-de-lis" hands. 41 mm., gilt brass full plate with cylindrical pillars, Earnshaw spring detent escapement, polished steelthree-arm balance, flat balance spring with Earnshaw sugar-tongue bimetallic compensation, blued steel balance spring, power from fusee and chain set between two brass plates.Signed on the dial and back plate.Dim. Height 125 mm. Notes Several pocket chronometer movements with sugar-tongue compensation were left in gray by Thomas Earnshaw and subsequently finished and sold by his son in the 1820's - 1830's.An almost identical pocket chronometer movement, No. 1035/3932 in a silver hunting-case made in 1837, from the collection of the Time Museum (Rockford, Illinois) is described by Anthony Randall in the Museum catalogue, page 157.Hunt & RoskellWere among the largest retailers in London. They employed the best makers, such as James Fergusson Cole and others. In this case they decided to u