One Lummer-Brodhun photometer head
Everett Edgecumbe photometer, no. 356504
Flicker photometer mounted on short metal rod
1900-1980
Photometer, marked: ‘39 G’
Beads for Wheatstone's photometer
Flame photometer
Ritchie's photometer
1827-1856
Joly's photometer by Griffin and George Ltd.
1954-1983
Photometer, marked: ’34 G’
Holophane-Edgcumbe Auto-photometer in box
Holophane-Edgecombe street lighting photometer in purpose built oak box
circa 1950
Lowe jet photometer, c.1860.
Wild flicker photometer
Lummer-Brodhun photometer
Lummer Brodhun photometer head
Portable photometer
Lummer Brodhun photometer
1900-1980
Spectro-photometer
1900-1980
Flame photometer. No.866150
1900-1980
Heyde's Aktino-Photometer
McMurty Photometer. Extinction type meter
1914-1924
Photometer made by Schmidt and Haensch
Illumination photometer, N.P.L. 1928 design
Two photometers
Conroy photometer in black box
1920-1946
Spurge Photometer
Wheatstone type photometer
1872
Watt photometer by Everett and Edgecumbe
Recording comparato-microphotometer Model L900 by Rank Precision Industries Ltd.
Apparatus for measuring the brightness of the night sky
1900-1939
Everett Edgcumbe auto photometer
Modified spurge photometer.
Letheby's Photometer
Abney type colour photometer with rotating sector apparatus by Adam Hilger
1888
Technicolour Reflection Photometer
comparison photometer
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
Agfa Variomat Masking Frame/Photometer
Photometer, Pulfrich, with numerous accessories and spare parts
1900-1980
Walsh Distribution Photometer
EEL flame photometer
Oldham portable photometer
Hilger microphotometer
1950