A 10" diameter dial, pale mahogany, or satinwood, wheel barometer with just 2 dials, made by the noted maker Thomas Harris & Son, London. Barometers with very pale wood are quite scarce since most have dark, or even very dark, mahogany veneer. This has its original long mercury thermometer and silvered brass 10 inch dial beneath, and the case has a single strip of ebony edge stringing. The set hand knob (replaced) operates the brass set hand by turning it, and this should be set to the indicating hand (the longer black hand); the latter will move as the weather changes, and the position of the set hand will therefore indicate where it WAS, and thus the change in reading, after the indicating hand has moved.
A nice and unusually pale large barometer, fully working.
Maximum dimensions :
Date : c. 1830