![](https://coimages.sciencemuseumgroup.org.uk/52/717/large_thumbnail_1922_0732__0001_.jpg)
McVitie Weston valve collection, Marconi WT Co valve, type M.T.1
- Made:
- 1919
![Marconi WT Co valve, type M.T](https://coimages.sciencemuseumgroup.org.uk/451/332/medium_smg00259331.jpg)
Marconi WT Co valve, type M.T.1, etched 11016 overprinted 2025 pinch marked 2376, (RMW/J67 - McVitie Weston number), by Marconi Wireless Telegraph Company Limited, 1919.
Marconi WT Co valve, type M.T.1, etched 11016 overprinted 2025 pinch marked 2376, (RMW/J67 - McVitie Weston number), by Marconi Wireless Telegraph Company Limited, 1919.