This open scale barograph in a glazed carrying case was made by Short and Mason. Changes in atmospheric pressure cause the series of aneroid capsules to move up and down. This small motion is mechanically enhanced by levers which adjust the position of the lightweight metal arm [...]
Posts tagged 20th-century
Short & Mason Barograph- Early 20th-Century
Short & Mason, London. Original glass ink bottle. Lovely quality Walnut case. Weight: 8.7 lbs. Dimensions: 7.5″ x 12.25″ x 6.25.
20th-Century Barometer
Rising indications in black, hand moves to right. Falling indications in red, hand moves to left. Overall Dimensions: 3 1/2 diameter. The item “20th-Century Barometer” is in sale since Tuesday, July 19, 2016. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “lannangallery” and is located in [...]