McVitie Weston valve collection, valve, type ARP4
- Made:
- 1939
Valve, type ARP4, grey metallizing defective, (RMW/Y570A - McVitie Weston number), by Unknown maker, 1939.
Valve, type ARP4, grey metallizing defective, (RMW/Y570A - McVitie Weston number), by Unknown maker, 1939.