National Physical Laboratory- Science and Technology in Wartime, Teddington, Middlesex, England, UK, 1944 In the Photometry Section of the Light Division at the National Physical Laboratory, a technician examines a selection of electric light bulbs which are used as standards in various photometric tests.

---

Size: 1821px × 2744px
Photo credit: © piemags/archive/military / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 2, information, military, ministry, piemags, war, world, ww2