McVitie Weston valve collection, valve, type VR21
Valve, type VR21, marked Z 10E/7738, grey metallizing, in carton, (RMW/Y410A - McVitie Weston number), by Unknown maker.
Valve, type VR21, marked Z 10E/7738, grey metallizing, in carton, (RMW/Y410A - McVitie Weston number), by Unknown maker.