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).
Notification regarding a delay in sending DeJon heads due to necessary detail changes.
| Identifier | ExFiles\Box 53\3\ Scan135 | |
| Date | 2nd November 1927 guessed | |
| X4181 (Extract from CY2/R.102427.) (X.3129.) Unfortunately we have not been able to send the DeJon heads yet as we have to make certain detail changes. | ||