6th Oct, 2021 13:00
Photographica
A Hurter & Driffield's Actinograph Exposure Calculator
A Hurter & Driffield's Actinograph Exposure Calculator
with cylindrical mean light Calendar meter, sliding speed and exposure scale, and Table of Factors, 1888 Patent, in maker's fitted wooden case with instructions, and maker's cardboard box, in fine condition
Sold for £450
Includes Buyer's Premium
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