H. Hemsley 12-inch Ebony Octant, 19th century, London, brass index arm with bone vernier scale from 0-20 with thumbscrew lock, arc reading 0-95, cross-arm bone boss reading as above, sighting pinnula, horizon mirror, and sunshades, small bone note plaque on rear, housed in a fitted mahogany case.
Auctioneer:
Skinner
Date:
2015-04-25
H. Edgworth 16 1/2-inch Ebony Octant, Bristol, England, mid 18th century, the brass and ebony arm with engraved decoration, bone vernier and thumbscrew adjustment, scale Read more…
Auctioneer:
Skinner
Date:
2011-07-16
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
James Imray 10-inch Ebony Octant, H. Duren, New York, 19th century, engraved ivory scale reading 0-100, brass index arm with thumbscrew lock down, vernier from Read more…
Auctioneer:
Skinner
Date:
2016-10-28
James Imray 10-inch Ebony Octant, H. Duren, New York, 19th century, engraved ivory scale reading 0-100, brass index arm with thumbscrew lock down, vernier from Read more…
Auctioneer:
Skinner
Date:
2016-06-01
Spencer Browning and Rust 12-inch Ebony Octant, London, 19th century, bone scale calibrated 0-95, brass index arm with vernier, sighting pinnula, sun shades, cross-arm bone Read more…
Auctioneer:
Skinner
Date:
2016-04-29
10-inch Ebony Octant, H. Duran, New York, 19th century, brass index arm with bone vernier scale from 0-20 with thumbscrew lock, bone arc reading 0-100, Read more…
Auctioneer:
Skinner
Date:
2015-04-21
15-inch Ebony Octant, 19th century, with ivory scale calibrated 0-90, brass index arm, locking thumbscrew, and ivory vernier reading 0-20, sighting pinnula, mirror magnifier, sun Read more…
Auctioneer:
Skinner
Date:
2016-06-01
Ebony Octant, with brass sliding index arm, bone scale divided 0-105, vernier scale indexed 0-20, thumb-screw adjustment and lock, brass sighting pinnula, mirror, shades, maker's Read more…
Auctioneer:
Skinner
Date:
2012-08-11
Ebony and brass octant, early 19th c. , retaining its original inlaid walnut case, purportedly from a Vermont family, case - 18 1/2" h., 17" Read more…
Auctioneer:
Pook & Pook
Date:
2010-04-24
Ebony and brass octant, early 19th c. , by Spencer, London, 11" h. Read more…
Auctioneer:
Pook & Pook
Date:
2010-04-24
