Lots of knowledge gained over the years and access to a considerable number of trade catalogues - UK, France, Italy, Germany, North America from the late 19th century to the present day.
Website
Unusual Barometer by F. Darton & Co. London
£ 325
Richard Twort
Scottish Mahogany Barograph
£ 445
Exceptionally Rare Barograph
£ 2,200
Marine Barometer - Montreal - Canada
£ 285
Improved Barograph by James Brown, Glasgow
£ 475
Barograph in Golden Oak 1920s
£ 565
Edwardian Barograph by Chadburns, Liverpool
£ 435
Compact Barograph by Ross, London
£ 485
Barograph in Rich Oak 1920s
£ 535
Barograph in Golden Oak - London
£ 455
Regency Barograph by Negretti & Zambra
£ 725
Barograph in Golden Oak
Redier Wall Barograph
£ 3,250
Walnut Cased Barograph by Ross, London
£ 575
Lighthouse Foghorn Recorder
£ 365
Military Award Barometer
£ 385
Unusual Oak Wall Thermometer
Micro-Barographs by Short & Mason
£ 675
Edwardian Barograph by Negretti & Zambra
£ 665
Rare Micro Barograph - Harrods of London
£ 1,475
Mahogany Barograph 1912
Flagship Barograph by Short & Mason
£ 935
180 Knots Anemometer Dial
£ 375
Traditional English Oak Barograph
£ 625
Remote Reading Dial Thermometer
£ 185
Edwardian Barograph by Stanley of London
£ 635
Unusual Barograph by Baines, Harrogate
£ 645
Liberty Foundations Advertising Barometer
Martini Advertising Barometer & Thermometer
Rare 'Rapid Indicating' Aneroid Barometer
£ 225
Retro Style 1950s Barograph by Short & Mason
Victorian Barograph Display Shelf
Large Public Display Barograph
£ 1,650
Original Campbell Stokes Sunshine Recorder Charts
POA
Art Deco Desktop Barometer
Sunshine Recorder, Jordan Pattern
Mahogany Barograph by Army & Navy, London
Edwardian Barograph by Atkinson, Lancaster
£ 585
Mid-60s Display Barograph by Casella, London
Ornate Edwardian Barograph, Chadburns Liverpool
£ 766