Antoine Redier patent wall mounted barograph, retailed by J Hicks of London. Circa 1895.

The wall mounted barograph is enclosed in a glazed mahogany case, with a hinged front which opens to access the chart, aneroid capsule, the movement, and altitude adjuster.

The silvered plated scale divided for 31 to 28 inches of barometric pressure.

Marked: J. HICKS. LONDON. No: 120.

Seven day drum movement.

With a key.

Height: 27 cm.

Width: 15 cm.

Depth: 12 cm..

Literature: Barometers: Aneroid and Barographs, Edwin Banfield, Baros Books, 1985. Pages 125 & 127.

The design for this barograph was patented by the French clockmaker and inventor Antoine Redier in 1891. Redier obtained 27 patents of invention or improvement, he was the first to patent an adjustable mechanical alarm clock, in 1847.