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16 March 2026
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Thomas Mercer, London, two day marine chronometer, 11 jewel fusee movement with spotted plates, Earnshaw's escapement, freesprung, cut bimetallic balance, diamond endstone, and helical balance spring, Roman numeral silvered dial with wind indicator and go
running, plates with scattered minor marks and fine scratches, barrel bridge screwheads with minor marring and loss to blue, bowl and gimbals in old l...