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325 326321.Robert Roskell Eight-Day Marine Chronometer, Liverpool, no.64231, with 4 3/4-in. dia. silvered brass dial engraved Rob’t. Roskell,Maker to the Admiralty, Liverpool, No. 1751 and 64231, Up-Downindicator, seconds dial, gilt spade hands, three-quarter plate spottedmovement with chain drive fusee, maintaining power, spring detentescapement, bimetallic balance with round weights, adjustmentscrews and helical hairspring, all in a gimbaled bowl engraved in script,Warwickshire and rosewood brass bound carrying case with single lidand carrying handles,$2,000-4,000324.Two-Day Marine Chronometer T.S. & J.D. Negus, New York, No.2095, 4-in. silvered brass dial signed T.S. & J.D. Negus, New York,No. 2095, Roman numerals, Up-Down indicator, seconds dial, goldhour and minute hands, blued seconds and indicator, three-quarterdamascened plate movement with jeweled escape and balance, chainfusee, maintaining power, helical hairspring, two-arm bi-metallic splitbalance wheel with circular weights and spring detent escapement,all mounted in a gimbaled bowl and three-tiered mahogany box withcarrying handles and vacant ivory name plate, ht. boxed 7 1/2 in.$1,500-2,500322.Two-Day Marine Chronometer by H. Frodsham, Liverpool, England,No. 2328, 3 1/2-in. silvered brass dial with Roman numerals, Up-Downindicator, seconds and signed H. Frodsham Liverpool and 2328, goldspade and blued-steel subsidiary hands, 2 1/4-in. dia. three-quarterplate movement with two-arm bi-metallic balance, brass balancescrews and trapezoidal balance weights, helical hairspring, chain fuseewith maintaining power and spring detent escapement mounted in abrass gimbaled bowl and three-tiered, brass-bound mahogany box withFrodsham Liverpool and 2328 on bone plates inset in the case, box ht.7, wd. 6, dp. 6 in.$1,500-2,500323.Two-Day Marine Chronometer by French, London, No. 6182, 4-in.dia. silvered brass dial signed French, Royal Exchange, London, No.6182, Roman numerals UP-DOWN indicator, seconds, brass hands,3-in. dia. full plate fusee movement signed French, Royal Exchange,London, No. 6182, two-arm split bi-metallic balance with keystoneshapedweights, helical hairspring and detent escapement, brass bowlmounted in gimbals and all in a brass-bound two-tiered box marked6182 with carrying handles and tipsey key, box ht. 7, wd. 6 1/2, dp. 61/2 in.$1,500-2,500325.Two-Day Marine Chronometer by Bliss & Creighton, New York, No.2240, 3 3/4-in. silvered brass dial signed Bliss & Creighton, New York,No. 2240, Roman numerals, Up-Down indicator, seconds dial withArabic numerals and inscribed Patent, gold hour and minute hands,three-quarter damascened plate, chain fusee movement with 2240stamped inside front plate, maintaining power, two-arm bi-metallicbalance with wedge shaped weights, helical hairspring, jeweled escapeand balance and spring detent escapement all mounted in a brassgimbaled bowl and three-tiered brass-bound mahogany box withcarrying handles and vacant name plate, ht. boxed 7 in.$2,000-3,000326.Mahogany Gimbaled Chronometer Watch Box, probably England,mid-19th century, the brass bound outer box with carrying handlesand single lid opens to the inner mahogany felt-lined watch box with 21/8-in. round dial opening and hinged lid, suspended in a wooden andbrass gimbal mounted felt-lined holder, outer box 7 in. square, watchcompartment approximately 2 3/8 in. dia.$200-400online bidding at www.skinnerinc.com69