C. 1850 Negretti and Zambra wheel barometer. Walnut banjo style case, mercury wheel barometer and thermometer. Silver dial bears retailer's name Joseph Cafsera & Co.of Dudley. Length 100 cm
The buyers premium is an additional percentage charge on the hammer price of the item, imposed by the auction house to cover administrative costs. The buyers premium percentage varies between auction houses, with a range of 12.5% to 22%.