McVitie Weston valve collection, BTH valve, type B
- Made:
- 1926
BTH valve, type B, marked 88381, (RMW/B74A - McVitie Weston number), by British Thomson-Houston Company Limited, 1926.
BTH valve, type B, marked 88381, (RMW/B74A - McVitie Weston number), by British Thomson-Houston Company Limited, 1926.