McVitie Weston valve collection, BTH valve, type RH1
- Made:
- 1927
BTH valve, type RH1, (RMW/A71 - McVitie Weston number), by British Thomson-Houston Company Limited, 1927.
BTH valve, type RH1, (RMW/A71 - McVitie Weston number), by British Thomson-Houston Company Limited, 1927.