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Lot Essay
Podlogar dates the Chronoscope to c.1910.
Details
Exposure meters
comprising a Chronoscope Pap actinometer, in maker's box; a brass Watkins exposure meter engraved Watkins Exposure Meter Patent Sole Markers R. Field & Co, Birmingham (2)
comprising a Chronoscope Pap actinometer, in maker's box; a brass Watkins exposure meter engraved Watkins Exposure Meter Patent Sole Markers R. Field & Co, Birmingham (2)
Literature
Miha Podlogar (1996), Exposure Meter and Cameras with built-in Exposure meter, Chronology 1818-1970, p. 31-32.
Special notice
VAT rate of 17.5% is payable on hammer price plus buyer’s premium.