McVitie Weston valve collection, Mullard valve, type PM1DG
- Made:
- circa 1925
- maker:
- Mullard Limited
Mullard valve, type PM1DG, (RMW/G12 - McVitie Weston number), by Mullard Limited, c. 1925.
Mullard valve, type PM1DG, (RMW/G12 - McVitie Weston number), by Mullard Limited, c. 1925.