McVitie Weston valve collection, Marconi valve, type GU2
- maker:
- Marconi Company Limited
Marconi valve, type GU2, (RMW/A205 - McVitie Weston number), by Marconi Company Limited.
Marconi valve, type GU2, (RMW/A205 - McVitie Weston number), by Marconi Company Limited.