"" EXCEPTIONALLY RARE ** Trombetta of Norwich Barometer by Negretti & Zambra

Description

Original Handcrafted Negretti and Zambra Barometer beautifully crafted with inlaid design.  It will need some work to make it functional but it can be displayed as is. The thermometer bulb does not appear to be in tack, see photos for overall condition.
"Meteorological Instruments for the Gobernment"
An exceptionally rare and possibly unique 18th century wheel barometer.
The 8½" diameter silvered brass? scale calibrated from 28" to 31" with weather indications shown in the earlier position on the outer edge of the dial. The center of the dial very well engraved with a star burst and makers name. The finely cut brass set hand controlled from the base of the barometer using an internal cogged wheel and spindle mechanism. A very rare feature. Also with blued steel? indicator hand. The whole dial enclosed within a glazed brass concave bezel. The long and offset silvered brass? thermometer scale with extreme temperatures shown from -30º to 130º Fahrenheit. The mahogany case of a most unusual design with cross-grained sides, boxwood edge inlay and mahogany veneer to the front. This type of veneer is usually only found on stick barometers of this period.
Note: Charles Trombetta is recorded as working in Norwich C.1800. In 1797 he married a Mary Fisher at St Stephens Church, Norwich. He was one of many Italian Immigrants who made the UK their home in the late 18th century and brought with them their knowledge and ability to make some very fine Scientific Instruments. (Ref: P.A.Oxley)
Negretti and Zambra
(active 1850 – c. 1999) was a company that produced scientific (philosophical) and optical instruments and also operated a
photographic studio
based in
London
,
England
. Henry Negretti (1818–1879) and Joseph Zambra (1822–1897) formed a partnership in 1850, thereby founding the firm which would eventually be appointed opticians and scientific instrument makers to Her Majesty
Queen Victoria
,
Prince Albert
and
King Edward VII
, the
Royal Observatory
and the
British Admiralty
. (Both Negretti and Zambra were born in Italy.)
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This item ships to the U.S. Mainland Only, is available for local pickup, and will be delivered free of charge within 30 miles of Rockville, MD