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 an engine with a carburettor and a measuring device attached.
| Identifier | ExFiles\Box 181\M13\M13.2\ img134 | |
| Date | 18th November 1931 guessed | |
| 1 2 3 4 5 6 7 8 9 10 11 12 D ROLLS-ROYCE | ||