A mid 19th century one-day mahogany marine chronometerJames McCabe, Royal Exchange, London, No. 199The three part case with central enamel number plaque, the lower section with inlaid brass escutcheon and hinged handles. The 3.25 inch signed silvered Roman dial with subsidiary Arabic seconds ring at VI and gold spade hands. The signed full plate movement with four ringed pillars and maintaining power to the chain fusee, free sprung blued steel helical balance spring with diamond endstone and Earnshaw type detent escapement, cut and compensated bimetallic balance with keystone-shaped weights, sitting in a weighted, numbered gimballed bowl, with sprung winding cover. Ticking, together with a tipsy key, a further winding key and a case key. 15.75cms (6ins) wide. Footnotes:Purchased 20 September 2002 from Gerald Marsh Antique Clocks, Winchester.An overview of the McCabe dynasty is included in the Appendix.