T.S. & J.D. Negus, New York, two day marine chronometer, 11 jewel fusee movement with Earnshaw's escapement, freesprung, cut bimetallic balance, diamond endstone, and helical balance spring, Roman numeral silvered dial with wind indicator and gold spade and poker hands, with gimballed, lacquered brass bowl, and contained in a three tier rosewood box with brass furniture, serial #1949

T.S. and J.D. Negus, New York, a good two day marine chronometer with original box, 11 jewel, free sprung fusee movement with Earnshaw's spring detent, cut, bimetallic chronometer balance with blued helical spring, and diamond endstone, signed Roman numeral silvered dial with wind indicator, gold spade and poker hands, contained in a lacquered brass bowl with gimbals, and mounted in a mahogany and rosewood veneer box with brass furniture, and plaque engraved "T.S. & J.D. Negus 1603 New York", the box also with rating certificate from L. A. Karcher & Co., Boston

T.S. & J.D. Negus, New York, two day marine chronometer, 11 jewel fusee movement with spotted plates, Earnshaw's escapement, freesprung, cut bimetallic "H" balance, diamond endstone, and blued steel helical balance spring, Roman numeral silvered dial with wind indicator and gold spade and poker hands, contained in a gimballed, lacquered brass bowl, all in a three tier mahogany box with brass furniture, serial #2062

T.S. & J.D. Negus, New York, two day marine chronometer, 11 jewel fusee movement with decorative scraping, Earnshaw's escapement, freesprung, cut bimetallic balance, diamond endstone, and blued steel helical balance spring, now with later break circuit mechanism closing the contacts at one second intervals, Roman numeral silvered dial with wind indicator and blued steel spade and poker hands, lacquered brass bowl, the bezel engraved "U.S. Navy", and contained in a 20th century purpose made box with screw terminals, serial #1215

T.S. & J.D. Negus, New York, two day marine chronometer, 11 jewel fusee movement with Earnshaw's escapement, freesprung, cut bimetallic balance, diamond endstone, and blued steel helical balance spring, the bottom plate with screw holes for break circuit contact, seconds arbor with additional wheel for break circuit mechanism, Roman numeral silvered dial with wind indicator and gold spade and poker hands, contained in a brass bowl, serial #1909, lacking box