McVitie Weston valve collection, Osram/GEC valve, type B2
- Made:
- 1919
- maker:
- Osram and General Electric Company Limited
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Osram/GEC valve, type B2, marked 187, pinch marked B2 382, with special base, (RMW/J16 - McVitie Weston number), by Osram; General Electric Company Limited, 1919.
