Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra
Barograph & Thermograph Combined Instrument by Negretti & Zambra

Barograph & Thermograph Combined Instrument by Negretti & Zambra

c. 1955 England

Offered by Richard Twort Antique Weather Instruments

£465 gbp
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Favourite Item
A commercial version of a combined barograph & thermograph by Negretti & Zambra. Set into a metal case with a glass panel at the front & circular grill to the side (allowing air to circulate around the bi-metallic temperature coil). This instrument from the 1950's is in working condition & the barograph movement comprises of the diaphragms with the separate section at the base which proved to be more accurate in tests - see extract from Negretti's 1950 catalogue. The movement also has the pen arms engraved with 'Thermograph' & 'Barograph' & each linked to a gate suspension. The pen arms move freely past each other using 'birds mouth pen nibs. A nice working instrument.

For more weather instruments, see my website www.barographsforsale.co.uk or call 07711939789
Good condition for year
Dimensions
Height 155.00 mm (6.10 inches)
Width 305.00 mm (12.01 inches)
Depth 140.00 mm (5.51 inches)
Stock Code
1077
Signed/Inscribed
NEGRETTI & ZAMBRA LONDON
Richard Twort Antique Weather Instruments

Richard Twort Antique Weather Instruments
Kewstoke
Weston-super-Mare
Somerset
England

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+44 (0)1934 641900
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+44 (0)7711 939789
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