A Hezzanith 'three-circle' black crackle finish vernier sextant, the main arc signed and numbered 'Heath & Co, New Eltham, London. S.E.9. KK 526', inset silvered scale divided 5° - 0° - 155°, 8¼in. (21cm.) index arm radius, index mirror with four shades, horizon mirror with three shades, in fitted wooden box -- 11in. (28cm.) wide, with Hezzanith certificate dated 1st Nov. 1943