A large brass universal equinoctial dial, signed on the hour ring Dollond London, with folding spring loaded gnomon, the hour ring divided IIII-XII-VIII, the folding latitude arc engraved 10°-80°, the inset silvered dial with bubble and cross bubble, engraved quadrantly, with edge-bar needle, cap and clamp, on three levelling screws - 7in.(18.9cm)diam.