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Sextant.

Catalogue number:
1981.0943.01

Inscriptions:
"Spencer Browning & Rust LONDON"

Dimensions:
radius 7.5 inches

Discussion:
This sextant has a brass frame. The silvered scale is graduated every 10 minutes from -5^o to +145^o and read by vernier with tangent screw and swinging magnifier to 10 seconds of arc.

Further Information:

Spencer, Browning & Rust
Sextant