McVitie Weston valve collection, Marconi valve, type D.E.8.H.F.
- Made:
- 1925
- maker:
- Marconi Company Limited
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Marconi valve, type D.E.8.H.F., etched 28581k, (RMW/C37 - McVitie Weston number), by Marconi Company Limited, 1925.
