McVitie Weston valve collection, Ediswan valve, type C.S.10
Ediswan valve, type C.S.10, 2ft 4in overall, with supporting ring and wires, (RMW/J121 - McVitie Weston number), by Royal Ediswan.
Ediswan valve, type C.S.10, 2ft 4in overall, with supporting ring and wires, (RMW/J121 - McVitie Weston number), by Royal Ediswan.