McVitie Weston valve collection, MOV valve, type E633
- maker:
- M-O Valve Company Limited
MOV valve, type E633, pinch marked 20 and E633, (RMW/Y276 - McVitie Weston number), by M-O Valve Co. Limited.
MOV valve, type E633, pinch marked 20 and E633, (RMW/Y276 - McVitie Weston number), by M-O Valve Co. Limited.