McVitie Weston valve collection, Cosmos valve, type S.P.18
Cosmos valve, type S.P.18, marked 02950, pinch moulded 6, (RMW/C119 - McVitie Weston number), by Metropolitan-Vickers Electrical Company Limited.
Cosmos valve, type S.P.18, marked 02950, pinch moulded 6, (RMW/C119 - McVitie Weston number), by Metropolitan-Vickers Electrical Company Limited.