Joseph Ridley, London, a George III tortoiseshell mounted gilt metal pair case pocket watch, circ

Joseph Ridley, London, a George III tortoiseshell mounted gilt metal pair case pocket watch, circa 1790, no.1851. verge movement with square Egyptian pillars, foliate pierced and engraved balloon-shaped balance cock with a pierced fan-shaped foot, steel three-arm balance and silver regulation dial, white enamelled dial with Arabic numerals and winding aperture at 3. o'clock, gilt metal and tortoiseshell covered case (lacking the glass) Joseph Ridley is recorded in Baillie, G.H., Watchmakers and Clockmakers of the World, 1788.