McVitie Weston valve collection, STC valve, type 4102D
- Made:
- 1926
STC valve, type 4102D, Pinch marked 9064J, (RMW/Y259F - McVitie Weston number), by Standard Telephones and Cables Limited, 1926.
STC valve, type 4102D, Pinch marked 9064J, (RMW/Y259F - McVitie Weston number), by Standard Telephones and Cables Limited, 1926.