A lacquered brass 'T' frame sextant with milled finish, signed on the arc, Made by T & H Doublet Finsby London for W & S Seagrove Portsea, with adjustable telescope mounting socket, seven shades and mirrors, the index arm with vernier, magnifier and tangent screw adjustment with clamp, ebony handle in fitted mahogany case with accessories including star and sun inverting telescopes - 10½in. (27cm.) wide.