McVitie Weston valve collection, Marconi-Osram valve, type FE3
- Made:
- 1924
- maker:
- M-O Valve Company Limited
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Marconi-Osram valve, type FE3, marked H107, pinch marked 328, (RMW/G4 - McVitie Weston number), by M-O Valve Co. Limited, 1924.
