McVitie Weston valve collection, Marconi Osram valve, type D.E.5.B
- Made:
- 1924
- maker:
- M-O Valve Company Limited
Marconi Osram valve, type D.E.5.B, etched J695, (RMW/C35A - McVitie Weston number), by M-O Valve Co. Limited, 1924.
Marconi Osram valve, type D.E.5.B, etched J695, (RMW/C35A - McVitie Weston number), by M-O Valve Co. Limited, 1924.