McVitie Weston valve collection, Cosmos valve, type DE50
- Made:
- 1927
Cosmos valve, type DE50, pinch marked 8/85, (RMW/C131 - McVitie Weston number), by Metropolitan-Vickers Electrical Company Limited, 1927.
Cosmos valve, type DE50, pinch marked 8/85, (RMW/C131 - McVitie Weston number), by Metropolitan-Vickers Electrical Company Limited, 1927.