An early 19th Century brass universal Equinoctial dial signed on the hour ring DOLLOND LONDON, with folding gnomon, the hour ring divided IIII-XII-VIII, folding latitude arc engraved 0°-60°, the inset silvered compass dial with bubble and cross bubble, engraved quadrantly with engraved compass rose, blued needle on three levelling screws - 4¼in(11.5cm)diam