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).
Telegram message from Royce regarding a preference for a 'four' scheme over an 'earth' scheme, pending lamp availability.
| Identifier | WestWitteringFiles\E\July1920\ Scan14 | |
| Date | 9th February 1919 | |
| R.R. 144A (100B.) SE 867. 9.7.18 MP 19387! ROLLS-ROYCE, LIMITED. TELEGRAM RECEIVED BY TELEPHONE. Time Received By Date 9/2 from To but | scheme | four | is | what I | prefer | we | cannot | consider an | earth | scheme | until | we hear | if | lamps | available FROM Royce THIS SHEET MUST BE FILED. | ||