细节
A MAHOGONY STICK BAROMETER
BY A. DOBBIE, 24 CLYDE PLACE, GLASGOW, SCOTLAND, 1857-1872
Glass faced ivory scales and adjustable vernier for the barometer. Thermometer is marked in farenheit degrees and 'improved sympiesometer'. All under a single glass face. The base is a carved floral design with a brass cistern at the bottom, 37 x 4in. (94 x10.2cm.)