McVitie Weston valve collection, STC valve, type NT.37
- Made:
- 1939
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STC valve, type NT.37, (RMW/Y695A - McVitie Weston number)
Science Museum Group
© The Board of Trustees of the Science Museum
STC valve, type NT.37, (RMW/Y695A - McVitie Weston number), by Standard Telephones and Cables Limited, 1939.
