McVitie Weston valve collection, valve, type NT13
Valve, type NT13, marked Adm. Patt. 7426 ZOSJ, in carton, (RMW/Y413A - McVitie Weston number), by Unknown maker.
Valve, type NT13, marked Adm. Patt. 7426 ZOSJ, in carton, (RMW/Y413A - McVitie Weston number), by Unknown maker.