작품 상세

A 8¼IN. RADIUS VERNIER SEXTANT BY THOMAS JONES, LONDON, CIRCA 1811 the oxidised brass lattice frame with polished brass arc signed Thos Jones, 21 Oxenden Street, London and engraved Capt Leyland, inset silvered scale divided to 130º, vernier with magnifier, seven shades, two mirrors and wooden handle, contained within fitted keystone box of issue with sighting tubes, box -- 12½in. (32cm.) wide