Double-Frame Brass Sextant by Troughton, London, No. 1259, with platinum scale, vernier with magnifier and owner's name "S.G. Bronson," radius 12 in., with accessories in shaped and fitted mahogany case, (top of case replaced and hole in side).
Auctioneer:
Skinner
Date:
2002-10-27
Brass Bridge Frame Sextant by Troughton, London, No. 1302, the lacquered brass frame and wooden handle with 9-inch limb, inlaid silver scale calibrated 0-145 and Read more…
Auctioneer:
Skinner
Date:
2010-05-01
Box Sextant by Troughton & Simms Ltd., London, No. 7315, with original bronzed finish, silvered arc with vernier divided 0-140° , magnifier, lacquered-brass telescope, and Read more…
Auctioneer:
Skinner
Date:
2006-07-29
Box Sextant by Troughton & Simms, of oxidized brass, with silvered vernier, telescope, magnifier on index arm, and mirror, dia. 3 in., in fitted maker's Read more…
Auctioneer:
Skinner
Date:
2004-09-11
Brass Box Sextant by Troughton & Simms, London, with silvered scale and vernier, index arm, magnifier, retractable telescope, magnifier and reflector, diam. 3 in., in Read more…
Auctioneer:
Skinner
Date:
2005-05-03
Box Sextant by Troughton & Simms, London, mid-19th century, lacquered-brass with silvered scale, vernier, magnifier, shades and cover, in fitted leather case with manuscript instructions, Read more…
Auctioneer:
Skinner
Date:
2002-04-13
4 1/4-inch Radius Miniature Sextant by Troughton & Simms, London, index arm with folding magnifier and thumbscrew micrometer vernier and locking screw, scale marked Troughton Read more…
Auctioneer:
Skinner
Date:
2009-07-25
Miniature Brass Sextant, by Troughton & Simms, London , with silvered scale divided 140-0, brass index arm with clamp, vernier fine screw-adjustment and magnifier, telescope, Read more…
Auctioneer:
Skinner
Date:
2004-09-11
Brass Theodolite by Troughton & Simms and an Unmarked Transit, the theodolite with 5 in. dia. silvered dial signed Troughton & Simms London , cardinal Read more…
Auctioneer:
Skinner
Date:
2009-07-25
Bronzed Brass Theodolite by Troughton & Simms, London, with 4 1/4 in. silvered dial divided 0-90 in four quadrants, wheel-set vernier moving limb and two Read more…
Auctioneer:
Skinner
Date:
2009-07-25
7 1/2-inch Radius Brass Sextant by Spencer & Company, London, polished brass oval pattern frame, brass limb with inlaid silver scale and engraved Spencer & Read more…
Auctioneer:
Skinner
Date:
2009-07-25
