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).
Reference numbers on a blank document.
| Identifier | ExFiles\Box 17\6\ Scan278 | |
| Date | 6th July 1934 guessed | |
| M960. A1,100/1 | ||