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Octant made by Spencer, Browning & Rust, London
octant
INSTRUMENTS - OCTANTSSpencer, Browning & Rust
England, London
1784-1840
overall: 11 7/8 in.
Octant, ebony frame, brass reinforced index arm, ivory nameplate "Spencer Browning & Rust. London."; SBR stamped on the scale (between 50°-55°); ivory scale graduated -2 deg. to +106 deg. by 1 deg. subdivided to 20', ivory vernier; 3 brass legs; adjustable index mirror with 4 fixed shades, horizon glass with 3 fixed shades; sight vane for telescope; fixed wooden handle.
1987.21.1