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).
Close-up photograph of a large multi-cylinder engine with a prominent air intake horn.
| Identifier | ExFiles\Box 64\3\ scan0299 | |
| Date | 23th February 1929 guessed | |
| 3 281 A | ||