McVitie Weston valve collection, Cossor valve, type MS Pen A
- Made:
- circa 1932
- maker:
- A C Cossor Limited
Cossor valve, type MS Pen A, 5-pin black moulded base, with top terminal, metallizing partly removed, (RMW/Y72 - McVitie Weston number), by A C Cossor Limited, c. 1932.
