Photometer model S511 by Weston
One Lummer-Brodhun photometer head
Everett Edgecumbe photometer, no. 356504
Flicker photometer mounted on short metal rod
1900-1980
Joly's photometer by Griffin and George Ltd.
1954-1983
Flame photometer
Ritchie's photometer
1827-1856
Photometer, marked: ‘39 G’
Holophane-Edgecombe street lighting photometer in purpose built oak box
circa 1950
Holophane-Edgcumbe Auto-photometer in box
Spectro-photometer
1900-1980
Photometer, marked: ’34 G’
Wild flicker photometer
Lummer-Brodhun photometer
Lummer Brodhun photometer head
Portable photometer
Lummer Brodhun photometer
1900-1980
Lowe jet photometer, c.1860.
Flame photometer. No.866150
1900-1980
Heyde's Aktino-Photometer
McMurty Photometer. Extinction type meter
1914-1924
Watt photometer by Everett and Edgecumbe
Conroy photometer in black box
1920-1946
Spurge Photometer
Wheatstone type photometer
1872
Photometer made by Schmidt and Haensch
Illumination photometer, N.P.L. 1928 design
Recording comparato-microphotometer Model L900 by Rank Precision Industries Ltd.
Letheby's Photometer
Abney type colour photometer with rotating sector apparatus by Adam Hilger
1888
comparison photometer
Two photometers
Everett Edgcumbe auto photometer
Modified spurge photometer.
Technicolour Reflection Photometer
Apparatus for measuring the brightness of the night sky
1900-1939
Autoanalyser Flame Photometer Mk III
Flame photometer (trade name E.E.L.)
Portable illumination photometer diaphragm type
Bunsen photometer
Microphotometer by Hilger and Watts London, c.1960
Filmograph photometer
M and V Photometer Model B
Oldham portable photometer
Agfa Variomat Masking Frame/Photometer
Hilger microphotometer
1950
Hurter and Driffield Photometer
1903
Woodbury Photometer
"Grey-Wedge Photometer"
1955