A small size (6in. - 15cm.) three circle oxidized brass frame vernier sextant, signed on the main scale ....Robe. 34 Strand St. Liverpool, swivel magnifier to index arm, four shades to index mirror, three shades to horizon mirror, inset silver scale divided 5 - 0 - 160, sun inverting and star telescopes plus other accessories in fitted mahogany box -- 11in. (27.5cm.) wide