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).
Cross-reference note for correspondence regarding a 20 HP starter motor.
| Identifier | ExFiles\Box 61b\3\ scan0169 | |
| Date | 18th November 1925 guessed | |
| X.5620. For previous correspondence in connection with 20 HP. starter motor, see file X.4384. EFC. | ||