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).
Testing and subsequent return of dynamo R.1860 for stock.
| Identifier | ExFiles\Box 36\4\ scan 100 | |
| Date | 28th July 1920 | |
| X.80146 EFC. 28.7.20. Herewith E.575 dynamo R.1860. When you have finished your tests will you kindly return same to me so that it can be put into stock, and oblige. Sgd. E.J. Brock. | ||