A VICTORIAN MAHOGANY CASED TWO-DAY MARINE CHRONOMETER PARKINSON AND FRODSHAM, LONDON, CIRCA 1840 The four pillar full-plate single chain fusee movement with Harrison's maintaining power, Earnshaw type spring detent escapement, split bimetallic balance incorporating keystone-shaped compensation weights, helical balance spring and faceted diamond endstone, the backplate signed Parkinson & Frodsham, Change Alley, London and with brass bayonet fitting dust cover, the 3.375 inch circular silvered Roman numeral dial with subsidiary seconds dial beneath inscription Parkinson & Frodsham, Change Alley, London N. 593 across the centre and UP/DOWN power reserve dial, with blued steel spade hands and secured by three screws to the edge of the dial into a lacquered brass bowl with screw-down bezel, with shuttered winding hole to underside and mounted within pivoted gimbals with locking screw, the mahogany three-tier case with push button clasp for the replaced top tier above vacant brass panel to the middle tier and brass key escutcheon over blank circular brass plate engraved No. 593 to base beneath, the sides with brass carrying handles. The box 17cm (6.75ins) high, 16cm (6.25ins) square. William Parkinson and William James Frodsham founded the highly regarded firm of Parkinson & Frodsham in 1801 at 4 Change Alley, Cornhill, London. William Parkinson died in 1842 and William Frodsham in 1850. Initially the firm specialised in marine and pocket chronometers and established an extensive export business supplying the Admiralty and numerous shipping companies. After the founders' deaths the business was continued by Frodsham's elder sons and grandson until 1912, when it was sold to the foreman, William Harris Harris and his son Geoffrey ran the business successfully until 1944 when the firm's premises in Budge Row were bombed.
A VICTORIAN MAHOGANY CASED TWO-DAY MARINE CHRONOMETER PARKINSON AND FRODSHAM, LONDON, CIRCA 1840 The four pillar full-plate single chain fusee movement with Harrison's maintaining power, Earnshaw type spring detent escapement, split bimetallic balance incorporating keystone-shaped compensation weights, helical balance spring and faceted diamond endstone, the backplate signed Parkinson & Frodsham, Change Alley, London and with brass bayonet fitting dust cover, the 3.375 inch circular silvered Roman numeral dial with subsidiary seconds dial beneath inscription Parkinson & Frodsham, Change Alley, London N. 593 across the centre and UP/DOWN power reserve dial, with blued steel spade hands and secured by three screws to the edge of the dial into a lacquered brass bowl with screw-down bezel, with shuttered winding hole to underside and mounted within pivoted gimbals with locking screw, the mahogany three-tier case with push button clasp for the replaced top tier above vacant brass panel to the middle tier and brass key escutcheon over blank circular brass plate engraved No. 593 to base beneath, the sides with brass carrying handles. The box 17cm (6.75ins) high, 16cm (6.25ins) square. William Parkinson and William James Frodsham founded the highly regarded firm of Parkinson & Frodsham in 1801 at 4 Change Alley, Cornhill, London. William Parkinson died in 1842 and William Frodsham in 1850. Initially the firm specialised in marine and pocket chronometers and established an extensive export business supplying the Admiralty and numerous shipping companies. After the founders' deaths the business was continued by Frodsham's elder sons and grandson until 1912, when it was sold to the foreman, William Harris Harris and his son Geoffrey ran the business successfully until 1944 when the firm's premises in Budge Row were bombed.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
