McVitie Weston valve collection, Ferranti valve, type V.R.21
- maker:
- Ferranti Limited
Ferranti valve, type V.R.21, gold metallizing missing in patches, (RMW/Y346 - McVitie Weston number), by Ferranti Limited.
Ferranti valve, type V.R.21, gold metallizing missing in patches, (RMW/Y346 - McVitie Weston number), by Ferranti Limited.