拍品 511
511
Exposure meters
VAT rate of 17.5% is payable on hammer price plus … 顯示更多
Exposure meters

細節
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)
出版
Miha Podlogar (1996), Exposure Meter and Cameras with built-in Exposure meter, Chronology 1818-1970, p. 31-32.
注意事項
VAT rate of 17.5% is payable on hammer price plus buyer’s premium.

拍品專文

Podlogar dates the Chronoscope to c.1910.