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).
Cover page with registration and reference numbers.
| Identifier | ExFiles\Box 76\1\ scan0312 | |
| Date | 18th July 1925 guessed | |
| AU 1677 8-G-111. REGISTRATION NO. CH.5236 HYDE Hs{Lord Ernest Hives - Chair}/LG. | ||