
McVitie Weston valve collection, STC Micromesh valve, type 5-B.1
- Made:
- circa 1930

STC Micromesh valve, type 5-B.1, metallised, (RMW/G140 - McVitie Weston number), by Standard Telephones and Cables Limited, c. 1930.
STC Micromesh valve, type 5-B.1, metallised, (RMW/G140 - McVitie Weston number), by Standard Telephones and Cables Limited, c. 1930.