Beschreibung:

Ω A fine George III mahogany mercury stick barometer with hygrometer Gilbert, Wright and Hooke, London, circa 1800 The caddy moulded and ebony banded case with open triangular pediment and cavetto cornice above hygrometer with independent adjustment for the beard pointer via a brass turn-screw set beneath, over inset silvered Vernier scale calibrated in barometric inches to the right hand margin opposing weather observations to the left, the upper margin signed Gilbert, Wright & Hooke, London, set behind flush hinged glazed door, the trunk with Vernier adjustment square to throat over conforming inset silvered Fahrenheit scale mercury tube thermometer with brass protective cover to the bulb and recording slider to right hand edge behind hinged glazed cover, the rounded base with circular moulded domed cistern cover above brass level adjustment screw to underside, 112cm (44ins) high. Provenance: Private collection Hampshire (ref. B67); purchased from C.E. Hebden, Cambridge, 28h July 1997 for £2,750. The partnership between William Gilbert, Gabriel Wright and Benjamin Hooke Hooke are recorded in Clifton, Gloria Directory of British Scientific Instrument Makers 1550-1851 as working from Navigation Warehouse, 148 Leadenhall Street, London 1794-1801. Cites Regulations Please note that this lot (lots marked with the symbol Ω in the printed catalogue) may be subject to CITES regulations when exported from the EU. The CITES regulations may be found at www.defra.gov.uk/ahvla-en/imports-exports/cites