McVitie Weston valve collection, North London Valve valve
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
LicenseSMG00313136
Science Museum Group
© The Board of Trustees of the Science Museum
North London Valve valve, spherical bulb with top pip
Science Museum Group
© The Board of Trustees of the Science Museum
North London Valve valve, spherical bulb with top pip, copper and ebonite 4-pin base, Mg gettered, (RMW/A44A - McVitie Weston number), by North London Valve Company Limited.
