A SCARCE VINTAGE MOTORING ANEROID BAROMETER WITH ALTIMETERNEGRETTI AND ZAMBRA, LONDON, CIRCA 1910The 2.75 inch circular white-on-black register inscribed MOTOR ANEROID over NEGRETTI & ZAMBRA, LONDON, 12833 to centre within scale calibrated for barometric inches divided into twentieths and outer rotating altimeter scale calibrated 0-10000 feet with divisions down to every fifty feet, set behind glazed milled bezel withing cavetto moulded surround and drilled flange for dashboard mounting.10cm (4ins) diameter, 3cm (1.5ins) deep.Provenance: The exhibition collection of Barometer World Meum, Merton, Devon.The firm of Negretti & Zambra are recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as being established in 1850 when a partner between Enrico Negretti and Joseph Warren Zambra was formed. The firm became one of the most prolific makers of scientific instruments and continued trading well into the 20th century.The current lot would have been supplied for a motorcar during the early years of motoring no doubt with the intention to assist the driver whilst touring.