McVitie Weston valve collection, STC valve, type 8A.1
- Made:
- 1933
STC valve, type 8A.1, dark and light blue printed label, (RMW/Y115 - McVitie Weston number), by Standard Telephones and Cables Limited, 1933.
STC valve, type 8A.1, dark and light blue printed label, (RMW/Y115 - McVitie Weston number), by Standard Telephones and Cables Limited, 1933.