A particularly rare and desirable small pattern display barograph by Negretti & Zambra, London, circa 1920. The lovely polished mahogany case has a bevelled glass hinged top and there is even a neat, two compartment chart drawer to the base. The clock and the barograph movement (in a rich golden lacquer) are in fine working condition.
This is a perfect scaled down version of the standard size barograph as seen from the comparison picture.
Charts are readily available and a quantity will be included along with a fresh bottle of recording ink and a copy of Negretti & Zambra's operating instructions pamphlet. 180mm High x 275mm Wide x 192 mm Deep.