From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Drawing of contacts for wireless screens, type M.S.V, sample 'B'.
| Identifier | ExFiles\Box 163\2\ img069 | |
| Date | 15th September 1933 | |
| X6008. SAMPLE 'B' CONTACTS FOR WIRELESS SCREENS. TYPE M.S.V. DRAWN DATE 15-9-33 | ||