λ A ROSEWOOD STICK BAROMETER

λ A ROSEWOOD STICK BAROMETER

BY THOMAS HARRIS, LONDON, C.1820-40

with an ivory thermometer and vernier scale inscribed 'Thos Harris Opticians to the Royal Family, Opposite the British Museum, LONDON', with a bone adjuster and turned reservoir cover

91.8cm high

*This item is offered for sale in accordance with the Ivory Act 2018 and has been assigned an exemption certificate.