Secret memo regarding the insecure handling of documents concerning an 8-Cylinder High Power Unit.
| Identifier | ExFiles\Box 27\3\ Scan089 | |
| Date | 28th April 1939 | |
| 1204 To Rm. {William Robotham - Chief Engineer} from Sg. {Arthur F. Sidgreaves - MD} Secret. Sg {Arthur F. Sidgreaves - MD} 18/E1539 Referring to Rm {William Robotham - Chief Engineer} 15/R.28.4.39 re 8-Cylinder High Power Unit and another memo. received from you this morning, though these were marked 'Secret' they were sent without a covering envelope. It is vitally important that such memoranda should be under cover before leaving your office. Sg {Arthur F. Sidgreaves - MD} | ||
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).