拍品 82
82
A lacquered brass lattice-framed vernier sextant, signed on the silvered arc John Willson Whitehaven 1809, the inset silvered scale graduated 0°o-140°o, seven shades, mirrors, telescope mount, index arm with silvered vernier and magnifier with wooden carrying handle in fitted case with accessories including star and sun inverting telescopes, the case with trade label for C.R. Sherman & Co. (successors to J. KEHEW) No. 49. North Water Street, New Bedford - 12½in. (32cm.) wide.

細節
A lacquered brass lattice-framed vernier sextant, signed on the silvered arc John Willson Whitehaven 1809, the inset silvered scale graduated 0°o-140°o, seven shades, mirrors, telescope mount, index arm with silvered vernier and magnifier with wooden carrying handle in fitted case with accessories including star and sun inverting telescopes, the case with trade label for C.R. Sherman & Co. (successors to J. KEHEW) No. 49. North Water Street, New Bedford - 12½in. (32cm.) wide.