English 18 carat gold English lever pocket watch Circa 1861

Gold Open faced pocket watch
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An English fine 18 carat gold keyless wind open faced pocket watch, London Hallmark for 1861. Gilt 3/4 plate movement with English lever, cut compensated bimetallic balance.
White enamel dial with black Roman numerals, black outer minute track and subsidiary seconds at 6 o’clock, gilt spade hands.
Polished consular gold case with a monogram on the back and personal inscription to the cuvette. Dial and movement signed and case stamped JB.
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Diameter: 54  mm
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Signed: Parkinson & Frodsham, Change Alley, London