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).
Title page for a document concerning battery ignition.
| Identifier | ExFiles\Box 47\4\ Scan052 | |
| Date | 5th October 1922 guessed | |
| BATTERY IGNITION ----------------- | ||