Cover sheet with two handwritten reference numbers.
| Identifier | ExFiles\Box 9\5\ 05-page044 | |
| Date | 1st October 1935 guessed | |
| M1,301 A1,592/3 | ||
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).