Edwardian Barograph by Negretti & Zambra, London
Edwardian oak cased barograph with bevelled glass panels.
Brass base plate supporting the eight vacuum chambers linking the ink pen pointer to the revolving clockwork drum and to the silvered barometer dial.
The dial has five weather indications and central blued steel pointer and is signed ‘Negretti and Zambra, London’.
Original ink bottle, double chart drawer and standing on bracket feet. C.1905
Negretti & Zambra were undoubtedly the most famous barograph and instrument makers of the day. The firm had premises at Hatton Garden, Cornhill, Regent Street and Fleet Street and were appointed Instrument makers to her Majesty.