£ 325
Antique Technical Drawing Set, German, Cartographer's Instruments, Riefler, 1920
£ 325
London Fine Ltd
£ 695
Antique Surveyor's Level, English, Brass, Scientific Instrument, Halden & Sons
£ 695
London Fine Ltd
£ 525
Early 19th Century 2-Draw Day or Night Telescope by Harris & Son London c1820
£ 525
Antique Ethos
Richard Twort
Sympiesometer by Cameron, Liverpool
£ 2,550
£ 1,295
Antique Engine Indicator, Scottish, Scientific Instrument, Dobbie McInnes, 1920
£ 1,295
London Fine Ltd
Richard Twort
Electrical Recording Rain Gauge by Negretti & Zambra
£ 2,925
Richard Twort
Philip Harris Barograph
£ 565
Richard Twort
Small Pattern Luft Display Barograph
£ 675
Richard Twort
Rare Guilt Cased Small Pattern Barograph
£ 975
Richard Twort
Early Wall Barograph by Redier
£ 1,100
£ 175
Large Antique Shipwright's Set Square, English, Rosewood, Tool, Victorian, 1880
£ 175
London Fine Ltd
London City Antiques
19th Century Antique Rosewood Inlaid Mother of Pearl Banjo Barometer
£ 1,285
19th Century Antique Rosewood Inlaid Mother of Pearl Banjo Barometer
£ 1,285
London City Antiques
Richard Twort
Magnificent Barograph, Manchester c.1901
£ 2,650
Rebecca Sarah Antiques
Small Antique Mahogany Aneroid Barometer
£ 295
£ 575
Antique Pluviometer, English, Udometer, Ombrometer, Rain Recorder, Victorian
£ 575
London Fine Ltd
Deviantik
Brass Postal Scale c.1890
£ 89
Chamade Antiques
Sports Timer Swiss Made
£ 38
Fernyhough Antiques Ltd
19th Century Rosewood Mercury Barometer by Joseph Somalvico & Co
£ 895
19th Century Rosewood Mercury Barometer by Joseph Somalvico & Co
£ 895
Fernyhough Antiques Ltd
£ 295
Antique Master Craftsman's Spirit Level, English, Brass, Desk - Victorian c.1850
£ 295
London Fine Ltd
Richard Twort
Huge Thermograph by Richard Freres, Paris
£ 125
Charles Jarvis Ltd
Mahogany Barometer
£ 350
Vavasseur Antiques
French Gilt Brass Desk Compendium Retailed by Dreyfous c.1910
£ 1,950
Richard Twort
Unusual Barograph with Dome c.1935
£ 875
Wick Antiques Ltd
Aneroid Desk Barometer by C W Dixey c.1850
£ 3,800
Vavasseur Antiques
Antique Desk Compendium by Dollond No 2451 c.1885
£ 1,685
Richard Twort
Negretti & Zambra Open Scale Barograph
£ 675
Richard Twort
Friez Bendix Anemograph
£ 80
Richard Twort
Victorian Damp Meters
£ 65
Wickersley Antiques
Early Architects Level c.1750
£ 275
Fincraigs Antiques
Victorian Rosewood Barometer
£ 2,800
GD Ginger Antiques
19th Century Boxwood Thermometer
£ 140
Vavasseur Antiques
Timpani Novelty Desk Barometer by Betjemann c.1880
£ 1,575
Richard Twort
Negretti & Zambra Thermograph, Copper Lid
£ 185
£ 125
Numerous Makers, Negretti & Zambra, Wilson & Warden, Short & Mason etc c.1950
£ 125
Richard Twort
£ 325
£ 675
Richard Twort
Thermograph by Jules Richard, Paris c.1925
£ 225
Richard Twort
Thermograph by Lawrence & Mayo, London c.1937
£ 250
Richard Twort
Thermograph by M Sendtner, Munchen c.1925
£ 325
£ 185
Thermograph by Negretti & Zambra, London For Instruments Ltd, Ottawa & Toronto Ci
£ 185
Richard Twort
