McVitie Weston valve collection, valve, type NR 48
Valve, type NR 48, marked A.P. 850 A, gold metallized, (RMW/Y481 - McVitie Weston number), by Unknown maker.
Valve, type NR 48, marked A.P. 850 A, gold metallized, (RMW/Y481 - McVitie Weston number), by Unknown maker.