An oxidised brass lattice frame sextant, signed on the arc J.H. Steward, 406 Strand, London and dated 1936, with seven shades, mirrors, silvered scale, adjustable telescope retaining socket, the index arm -- 6 3/8in. (16.2cm.) radius, with vernier and magnifier, tangent screw adjustment and clamp, with rosewood handle, four sighting tubes and other accessories, in mahogany case -- 5/8in. (24.5cm.) wide