McVitie Weston valve collection, Mullard valve, type MM4V
- maker:
- Mullard 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
LicenseMullard valve, type MM4V, marked dummy
Science Museum Group
© The Board of Trustees of the Science Museum
Mullard valve, type MM4V, marked dummy, (RMW/G90 - McVitie Weston number), by Mullard Limited.
