Weston Master III exposure meter
1959
Weston Photronic Exposure Meter Model 650. Photoelectric exposure meter
1935
Watkins "Standard" Exposure Meter
1890-1900
Actinograph
1888-1895
Wynne "Infallible" Hunter Meter
1927
Leon Warnerke's patent actinometer
1895-1905
Avo light meter model 3
1970-1979
Wynne's Earliest Pattern of Exposure Meter
Wynne "Infallible" exposure meter
1913
'Microsix' exposure meter by E. Leizt, c 1935
1930-1940
Avo Exposure meter model 1
1950-1959
Weston Master III Exposure Meter, 1955.
1955
Avo exposure meter
Imperial Exposure Meters
Wynne 'Hunter' Infallible Exposure Meter
Wynee Infallible Exposure Meter
circa 1910
Weston Photronic Exposure Meter
Weston Master Model III
circa 1960
exposure meter; actinometer
1887
Imperial Exposure Meter No 2 for Dull Light
Tempophot Photoelectric Exposure Meter in Case
1935
Watkins Dial Meter
1900
Dibdin's Automatic Exposure Meter
1895
French Chronoscope Exposure Meter
"Tempoplex" Exposure Calculator
Watkins Bee Exposure Meter with Instructions and Speed Card
1926
Mini-Rex II Exposure Meter in Leather Case, c. 1953
1953
Dibden's Automatic Exposure Meter
Addiphot Exposure Meter, c. 1938
1938
Watkins' Snipe Meter, c. 1920
1920
Disc Actinometer (Autotype)
Metrovic Photo-Electric Exposure Meter
"Leudi" Exposure (Extinction) Meter
1936
Diaphot Exposure Meter
SE1 Exposure Meter by GEC
1952
Ilford Aluminium Exposure Meter
1908
Imperial Exposure Meter No 1 for Bright Light
Johnson's Actinometer (Autotype)
1910-1920
Watkins' Print Meter, c. 1910
1910
'Bijou' Actinometer and Exposure Table Byde by Isaac Watts
1885
Watkins Dial Meter Experimental Model
1900
Avo Smethhurst High Light Exposure Meter in leather case
1940-1959
Wynee Infallible Exposure Meter
circa 1910
Ikophot Photo Electric Exposure Meter
1955
Weston Photronic Exposure Meter
circa 1934
Willo Cinemeter Extinction Exposure Meter
Watkins Indoor Exposure Meter
circa 1910
Johnson Exposure Tester
1945
Tempophot Photo-electric Exposure Meter
AVO Exposure Meter
circa 1935