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G.A. COLES, LONDON
Details
A late 19th century 9 in. three circle sextant
G.A. Coles, London
a blackened brass three-circle frame with inset silvered scale divided to 160, vernier clamp and fine-screw adjustment, diffuser, swivel magnifier, mirrors, seven shades, sighting tubes and rosewood handle. Containted in a fitted box with brass handle, securing hooks.
9 x 10 in. (22.9 x 25.4 cm.) box
G.A. Coles, London
a blackened brass three-circle frame with inset silvered scale divided to 160, vernier clamp and fine-screw adjustment, diffuser, swivel magnifier, mirrors, seven shades, sighting tubes and rosewood handle. Containted in a fitted box with brass handle, securing hooks.
9 x 10 in. (22.9 x 25.4 cm.) box