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).
Issuing a standardisation sheet for 20 HP Dynamo Brushes.
| Identifier | ExFiles\Box 50\5\ Scan298 | |
| Date | 24th March 1924 | |
| X 433? To ROY.{Sir Henry Royce} from EFC. c. BY.{R.W. Bailey - Chief Engineer} EFC2/T24.3.24. X.4333 - 20 HP. DYNAMO BRUSHES - EG2 MORGANITE. Reference your By17/P21.3.24. We are issuing a standardisation sheet covering the use of the above brushes in case of failure of supply only of Le Carbone Z type. EFC. | ||