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UNSIGNED. 19TH CENTURY
Details
A lacquered and oxidised-brass and mahogany ophthalmascope
Unsigned. 19th Century
The mahogany eyeshade surrounding the two viewing apertures, each with a prism on the other side in an oxidised-brass casing and a turning wheel to reorient each one, a third brass turning wheel at the side to bring them closer together or further apart, raised on an adjustable brass column with a circular plinth base
30.3cm. high
Unsigned. 19th Century
The mahogany eyeshade surrounding the two viewing apertures, each with a prism on the other side in an oxidised-brass casing and a turning wheel to reorient each one, a third brass turning wheel at the side to bring them closer together or further apart, raised on an adjustable brass column with a circular plinth base
30.3cm. high
Special notice
Christie's charges a Buyer's premium calculated at 23.205% of the hammer price for each lot with a value up to €110,000. If the hammer price of a lot exceeds €110,000 then the premium for the lot is calculated at 23.205% of the first €110,000 plus 11.9% of any amount in excess of €110,000. Buyer's Premium is calculated on this basis for each lot individually.