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Lot Essay
By the use of polarised light the parrot changes colour as the crank is turned. This slide was used by Professor Drummond at London University.
Details
Parrot selenite lantern slide
7 x 4½ inches, wood-mounted, with hand-crank, depicting a parrot on branch
7 x 4½ inches, wood-mounted, with hand-crank, depicting a parrot on branch
Literature
Lewis Wright (1890), Optical Projection.
Special notice
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium, which is invoiced on a VAT inclusive basis.