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).
Diagram of a 25-30 HP float chamber.
| Identifier | ExFiles\Box 91\3\ scan0027 | |
| Date | 1st July 1938 guessed | |
| 25 - 30 H.P. FLOATCHAMBER. POSITION OF STAND PIPE. PETROL. 17-3 | ||