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).
To Mr. Brock regarding the monthly test of a 40/50 chassis dynamo.
| Identifier | ExFiles\Box 68\4\ scan0067 | |
| Date | 23th October 1929 | |
| X.8672 Mr. Brock. from EFC. EFC2/AD23.10.29. MONTHLY PRODUCTION MACHINE. We are expecting to receive from you a 40/50 chassis dynamo for monthly test. EFC. | ||