![](https://coimages.sciencemuseumgroup.org.uk/50/675/large_thumbnail_1972_0141_0248__0002_.jpg)
McVitie Weston valve collection, Brimar valve, type 7D5
- Made:
- 1943
![Brimar valve, type 7D5, domed envelope, graphited](https://coimages.sciencemuseumgroup.org.uk/449/920/medium_smg00257845.jpg)
Brimar valve, type 7D5, domed envelope, graphited, pinch marked X286, (RMW/Y552B - McVitie Weston number), by British Thomson-Houston Company Limited, 1943.
Brimar valve, type 7D5, domed envelope, graphited, pinch marked X286, (RMW/Y552B - McVitie Weston number), by British Thomson-Houston Company Limited, 1943.