Cossor output triode valve, type 610.F.P., B4 base, with green printed label, marked 108G, (RMW/D24 - McVitie Weston number), by A C Cossor Limited.
Cossor output triode valve, type 610.F.P., B4 base, with green printed label, marked 108G, (RMW/D24 - McVitie Weston number), by A C Cossor Limited.