11-inch Radius Ebony Vernier Sextant by Crichton, London, with bone scale divided 105 - 0 , brass index arm with vernier, two telescopes (mounting ring off), mirror and colored filters, in mahogany keystone case with label of W. J. Crawford, Practical Chronometer, Watch & Nautical Instrument Maker, 70 Corporation St., Belfast .
Auctioneer:
Skinner
Date:
2007-03-24
9-inch Radius Ebony Vernier Sextant by D. McGregor, Greenock, with bone scale divided 0-105, brass index arm with vernier, thumbscrew lock and fine adjustment, mirror Read more…
Auctioneer:
Skinner
Date:
2010-11-20
Sextant, made by Benjamin King Hagger, South Street, Baltimore, 1822, 11-inch radius ebony vernier sextant with ivory scale divided 100-0, brass index arm with vernier, Read more…
Auctioneer:
Skinner
Date:
2011-03-06
Ebony 10-inch Radius Vernier Sextant by Thos. Jones, Liverpool, with bone scale marked 0-100 , brass index arm with screw adjustment and clamp, sighting tube, Read more…
Auctioneer:
Skinner
Date:
2005-05-03
12-inch Radius Ebony Octant by Steel and Goddard, London, with bone scale calibrated 0-95, brass sliding index arm with read out and bone vernier, thunbscrew Read more…
Auctioneer:
Skinner
Date:
2009-07-25
10-inch Radius Ebony Octant by Spencer Browning & Company, London, with brass sliding index arm, bone scale divided 0-105, vernier scale indexed 0-20, thumb screw Read more…
Auctioneer:
Skinner
Date:
2009-07-25
10-inch Radius Ebony Octant by Spencer & Company, London, with bone maker's plaque marked Spencer & Co. London , scale calibrated 0-105, brass index arm Read more…
Auctioneer:
Skinner
Date:
2010-11-20
10-inch Radius Ebony Octant, case marked J. Higgs, Bristol, with vacant bone maker's plaque, scale calibrated 0-110, brass index arm with vernier and magnifier, thumbscrew Read more…
Auctioneer:
Skinner
Date:
2010-11-20
Ten Inch Radius Ebony Octant by H. Hughes, London, the brass index arm with thumbscrew vernier adjustment, inset ivory scale calibrated 0-105 and vacant maker's Read more…
Auctioneer:
Skinner
Date:
2009-07-25
10-inch Radius Ebony Octant, with bone scale divided 0-100° , brass index arm with tangent screw adjustment, vernier and clamp, pinhole sight, mirror, three filters, Read more…
Auctioneer:
Skinner
Date:
2006-07-29
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
