McVitie Weston valve collection, Cossor valve, type X.263
- Made:
- 1934
- maker:
- A C Cossor Limited
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Cossor valve, type X.263, red paper label marked J, 5in screen, tube 1ft 5in long overall, with one side tube for second anode, (RMW/K42 - McVitie Weston number), by A C Cossor Limited, 1934.
