Charles Frodsham, Clockmaker to the Queen, 84 Strand, London 1155The rectangular case with heavy bevelled glass inspection panel over similar side arched panels on a moulded base to adjustable brass bun feet, the rear door with pierced sound fret backed with red silk, the signed white enamel Roman dial with minute track and blued steel hands framed within a pierced and engraved foliate scroll mask in an engraved angled sight ring, the twin chain fusee movement with rectangular plates united by five turned pillars, the going train with large gilt platform supporting the cut and compensated bimetallic balance to an underslung lever escapement, the rack strike sounding on a bell mounted to the backplate with strike/silent option 23cms (ins) high