McVitie Weston valve collection, Louden valve, type F2
- Made:
- 1924
Louden valve, type F2, pip and top of glass envelope painted blue, (RMW/B140 - McVitie Weston number), by Unknown maker, 1924.
Louden valve, type F2, pip and top of glass envelope painted blue, (RMW/B140 - McVitie Weston number), by Unknown maker, 1924.