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 relating to solid poles for the 20 HP starter motor.
| Identifier | ExFiles\Box 61b\3\ scan0170 | |
| Date | 1st December 1926 guessed | |
| X8620 For correspondence in connection with solid poles for 20 HP. starter motor, see file X.4132. EFC. | ||