细节
A gilt-brass equinoctial dial
by Andreas Vogler, Augsburg, the octagonal base with engraved floriate decoration, hour ring divided IX-XII-IV, latitude arc divided 10°-80° and folding plumb frame, the compass box with blued needle and engraved on the underside with the latitudes of seven European cities, on three levelling feet -- 2½in.(6.5cm.)wide, in shaped leather-covered case, late 18th century
by Andreas Vogler, Augsburg, the octagonal base with engraved floriate decoration, hour ring divided IX-XII-IV, latitude arc divided 10°-80° and folding plumb frame, the compass box with blued needle and engraved on the underside with the latitudes of seven European cities, on three levelling feet -- 2½in.(6.5cm.)wide, in shaped leather-covered case, late 18th century