


Photometer model S511 by Weston

Flicker photometer mounted on short metal rod
1900-1980

One Lummer-Brodhun photometer head

Flame photometer

Beads for Wheatstone's photometer

Decoudun photometer
1800-1950

Spurge Photometer

Modified spurge photometer.

Everett Edgcumbe auto photometer

Photometer, marked: ‘39 G’

Ritchie's photometer
1827-1856

Joly's photometer by Griffin and George Ltd.
1954-1983

Lummer Brodhun photometer head

Lummer-Brodhun photometer

Portable photometer

Wild flicker photometer

Photometer, marked: ’34 G’

Lowe jet photometer, c.1860.

Lummer Brodhun photometer
1900-1980

Holophane-Edgecombe street lighting photometer in purpose built oak box
circa 1950

Holophane-Edgcumbe Auto-photometer in box

Spectro-photometer
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
comparison photometer
Technicolour Reflection Photometer
Two photometers
Abney type colour photometer with rotating sector apparatus by Adam Hilger
1888
Flame photometer. No.866150
1900-1980
Conroy photometer in black box
1920-1946
Watt photometer by Everett and Edgecumbe
Apparatus for measuring the brightness of the night sky
1900-1939
Wheatstone type photometer
1872
Recording comparato-microphotometer Model L900 by Rank Precision Industries Ltd.
Letheby's Photometer
Photometer, Pulfrich, with numerous accessories and spare parts
1900-1980
Walsh Distribution Photometer
EEL flame photometer
M and V Photometer Model B
Agfa Variomat Masking Frame/Photometer
Hilger microphotometer
1950