McVitie Weston valve collection, Marconi Osram valve, type L.S.3
- Made:
- 1924
- maker:
- M-O Valve Company Limited
This image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseMarconi Osram valve, type L.S
Science Museum Group
© The Board of Trustees of the Science Museum
Marconi Osram valve, type L.S.3, etched L 32815, filament missing, (RMW/B112A - McVitie Weston number), by M-O Valve Co. Limited, 1924.
