A good scarce cased silver aneroid pocket barometer No 8058 by William Edmund Callaghan, London, with case by Albert Thomas Oliver c1903

A rare silver-cased bimetallic pocket thermometer by Johann Holtzman, Vienna c1850 - £1300

A very unusual early miniature rose engine turned silver aneroid pocket barometer altimeter No 66 by C.W. Dixey c1863

A scarce miniature silver hunter cased Singer Patent design compass by Aaron Lufkin Dennison, Birmingham, No 838 c1915 - £550

A very rare antique silver Immisch patent volute tube or avitreous skin thermometer no 2879 retailed by Pillischer, London c1881 - £585

A good French silver pocket barometer, altimeter and compass compendium, probably by Maxant, c1895 - £595

A very good commemorative silver-cased aneroid pocket altimeter barometer by J. Hicks, No 8166, c1906, with case by Albert Thomas Oliver, to 20000ft - £675

An exceptional Royal presentation silver pocket barometer compendium by Alfred Clark, London, with movement by Negretti & Zambra, c1900

A fine antique silver pocket barometer and altimeter by J Hicks, No 10065, with case by Albert Thomas Oliver, c1912 - £650

An unusual antique silver watch-cased pocket barometer by Short & Mason, No 14, with case by Albert Thomas Oliver, retailed by Kilpatrick & Co, London & Melbourne, c1910 - £750

A fine antique first quality English silver-cased pocket barometer altimeter by J Hicks, London, No 7702, case by Albert Thomas Oliver, c1905 - £675

An important, very early, fine, silver-cased pocket barometer by Negretti & Zambra, London, No 575, hallmarked for 1863

A very fine and rare, first quality, engine-turned, silver-cased pocket barometer altimeter by L Casella, London, No 594, c1863, case by William Smiley