A double 'A' frame oxidised brass vernier sextant, signed on main arc 'Troughton & Simms, London' and on the upright numbered '2390', the inset silver scale divided 5° - 0° - 150°, swivel magnifier, 8¼in. (21cm.) index arm radius, index mirror with four shades, horizon mirror with three shades, one viewing tube (no telescopes), in fitted mahogany carrying case -- 11½in. (30cm.) wide, with trade label of 'H. Hughes Optical Nautical & Mathematical Instrument Maker, 59 Fenchurch St, London'