细节
An early 19th-Century universal equinoctial ring dial,
signed Hamlin, London, the meridian ring with sliding suspension attachment, engraved on one side with two quadrants, the other with declination scale, the pivoted equinoctial ring with I-XII hour scales, the bridge with sliding pin-hole sight, engraved with calendar scales (meridian ring defective, incorrect pin mounting) -- 6.1/8in. (15.5cm.) dia.
signed Hamlin, London, the meridian ring with sliding suspension attachment, engraved on one side with two quadrants, the other with declination scale, the pivoted equinoctial ring with I-XII hour scales, the bridge with sliding pin-hole sight, engraved with calendar scales (meridian ring defective, incorrect pin mounting) -- 6.1/8in. (15.5cm.) dia.