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).
Internal request to order three dozen brushes for a sequence starter sliding armature.
| Identifier | ExFiles\Box 64\2\ scan0158 | |
| Date | 10th May 1928 | |
| X7625B ROY.{Sir Henry Royce} from EFC. EFC2/T10.5.28. BRUSHES FOR SEQUENCE STARTER SLIDING ARMATURE. Would you please order three dozen Brushes to D.71279. EFC. O/N.54733. | ||