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).
Continued document page detailing ignition lever positions and retard for battery ignition systems.
| Identifier | ExFiles\Box 65\1\ scan0031 | |
| Date | 22th December 1924 | |
| -2- Contd. EFC1/T22.12.24. more advanced positions of the ignition lever, and the extra retard of the battery ignition for the more retarded positions of that lever. This method of representation is universally applicable to any ignition system. EFC. | ||