细节
A universal equinoctial sundial
by Sadtler, Vienna, in lacquered-brass with silvered hour circle divided iii-xii-ix, gnomon, silvered latitude arc divided 10°-90°, compass box signed Sadtler in Wien with clamp and spirit-level and cross, the underside engraved with the latitudes of eight Continental cities, on three levelling feet -- 6in.(15cm.)diam., in mahogany case
by Sadtler, Vienna, in lacquered-brass with silvered hour circle divided iii-xii-ix, gnomon, silvered latitude arc divided 10°-90°, compass box signed Sadtler in Wien with clamp and spirit-level and cross, the underside engraved with the latitudes of eight Continental cities, on three levelling feet -- 6in.(15cm.)diam., in mahogany case