McVitie Weston valve collection, Six Sixty valve, type S.S.4Y S.G.A.C.
- maker:
- Six Sixty Limited
Six Sixty valve, type S.S.4Y S.G.A.C., pinch marked OA, (RMW/G130 - McVitie Weston number), by Six Sixty Limited.
Six Sixty valve, type S.S.4Y S.G.A.C., pinch marked OA, (RMW/G130 - McVitie Weston number), by Six Sixty Limited.