Like stick barometers these use a tube of mercury which has a U bend. A glass weight rests on top of the mercury with a fine thread acting on a pulley or wheel, attached to the pulley is a hand which indicates on a dial the rise and fall of barometric pressure. This type of barometer is often called a “Banjo” Barometer.
A superb quality and rare 12” wheel barometer with finely engraved, silvered dial signed … Read More
A good Mahogany wheel barometer with inlaid foliage marquetry panels & fine stringing. The … Read More
A good mahogany wheel barometer by G.Broggi. The case has line stringing to the … Read More
A good, early wheel barometer. The elegantly simple engraving on the 8” dial and … Read More
A fine and attractive early wheel barometer by James Gatty, 132 Holborn, London. Swan-neck … Read More