A lacquered brass universal equinoctial compass dial, engraved on the hour ring Horne & Thornwaithe 121, 122, 123 Newgate Street London the hour scale divided IIII - IIX - VIII (x2) with spring toaded square grimon, the latitude arc engraved 0-70, the compass dial, with engraved compass rose, with edge-bar needle on pivot with clamp, the base plate with level, cross-bubble and three adjustable screw feet in fitted mahogany case, 19th Century -- 8¼in.wide