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, vacant bone plaque and brass pin feet, in keystone case with green-painted interior.
Auctioneer:
Skinner
Date:
2006-07-29
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
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
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
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
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 Octant Lamp, the 10-inch radius vernier octant with bone scale, index arm, pinhole sight, and three shades now fixed to a lamp base, total Read more…
Auctioneer:
Skinner
Date:
2008-07-17
Spencer Barrett & Co. Ebony Octant, London, 11-in. radius with bone maker's plaque marked Spencer Barrett & Co., London scale calibrated 0-105, brass index arm Read more…
Auctioneer:
Skinner
Date:
2012-12-01
Spencer Browning & Co. Ebony Octant, London, 10-in. radius with bone maker's plaque marked Spencer Browning & Co. London , scale calibrated 0-100, brass index Read more…
Auctioneer:
Skinner
Date:
2012-12-01
