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Lot Essay
This is the 1901 pattern Actinograph. The original 1888 patent comprised a polished wooden case which housed the slides and rotating scale. The Actinograph is considered to be the first exposure calculator.
Details
Actinograph
Hurter & Driffield, London; with two sliding scales and printed table of factors, instruction booklets, in leather wallet
Hurter & Driffield, London; with two sliding scales and printed table of factors, instruction booklets, in leather wallet
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.