McVitie Weston valve collection, Mullard valve, type 4
- maker:
- Mullard Limited
Mullard valve, type 4, interservice cap, (RMW/H40 - McVitie Weston number), by Mullard Limited.
Mullard valve, type 4, interservice cap, (RMW/H40 - McVitie Weston number), by Mullard Limited.