Military & Scientific Barometers & Altimeters

A very interesting Royal Navy issue double rotation aneroid barometer / ambient breathing air pressure gauge by T. Wheeler No 7343 c1941 - £550

An extremely rare aluminium Watkin Patent pocket barometer altimeter No 1012 by J Hicks, London, scaled to 10,600’, c1890

A fascinating extremely rare & highly accurate Precision Surveying Barometer Altimeter by Negretti & Zambra No P/111671 movement No 109 c1930s

A very important antique chrome brass drum form official Experimental Aneroid barometer by Negretti & Zambra, c1920

A very good, lacquered brass “Hutchinson’s Improved” surveying pocket barometer by Elliott Brothers, 449 Strand, London, No 2964, c1883 - £325

A metric gilt brass Watkin Patent extended scale altimeter by J Hicks, No 305, retailed by Elliott Brothers, scaled to 3,000m, c1888

An extremely rare brass military issue aneroid bulkhead barometer by Elliott Brothers, Charing Cross, London, No 175, c1857 - £450

A very good military issue antique barometer altimeter by F Darton & Co, London, No 851, c1890 - £225

A fine japanned brass early 20th century surveying barometer by Negretti & Zambra, London, No 17087, scaled to 10,000ft - £350

A very early, gilt brass Watkin Patent barometer by J Hicks, Hatton Garden, London, No 23, retailed by F Robson, scaled to 5,300ft, c1886

A very good gilt brass Watkin Patent extended scale barometer altimeter by J Hicks, London, No 354, scaled to 5,000ft, c1888

A very good gilt brass Watkin Patent extended scale mountaineers or balloonists barometer altimeter by J Hicks, London, No 213, scaled to 20,000ft, c1887