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).
Replacement of a 40/50 HP dynamo.
| Identifier | ExFiles\Box 68\4\ scan0069 | |
| Date | 2nd November 1929 | |
| X8672 MR. Strong. from EFC. EFC4/AM.2.11.29. X,8672. 40/50 HP. DYNAMO. We hand you herewith, dynamo I, which is to replace the machine (dynamo HO1) taken off 12-EX and returned to us by you as arranged. EFC. | ||