Mahogany 17-inch Radius Vernier Octant by Nairne & Blunt, London, with boxwood scale divided 0-95 , index arm with bone vernier 0-20 and brass carrier signed T. Halton, 1788 , clamp, pinhole sight, mirror, filters, and engraved bone maker's plaque, on brass feet.
Auctioneer:
Skinner
Date:
2005-05-03
Ebony 13-inch Radius Vernier Octant by Spencer, Browning & Rust, with bone scale marked 0-95 and engraved with monogram SBR , oxidized brass index arm Read more…
Auctioneer:
Skinner
Date:
2005-05-03
Ebony 16-inch Radius Vernier Octant, with brass index arm, pinhole sight, mirror and filters, on brass feet, (lacking scales, maker's plaque and reflector). Read more…
Auctioneer:
Skinner
Date:
2005-11-03
17-inch Radius Mahogany Vernier Octant by William Holliwell, with bone scale divided 95-0 , brass index arm with vernier (missing clamp), mirror, filters and pinhole Read more…
Auctioneer:
Skinner
Date:
2007-03-24
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
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
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 Ebonized Octant by P. A. Feathers, Dundee, Scotland, brass arm with vernier, thumbscrew lock and adjustment, bone scale and maker's plate signed P.A. Read more…
Auctioneer:
Skinner
Date:
2011-07-16
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
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
