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 six-cylinder engine block with the cylinder head being lifted by a hoist.
| Identifier | ExFiles\Box 107\2\ scan0073 | |
| Date | 30th June 1939 guessed | |
| GWH.{George W. Hancock - Head Chateauroux} 11 1 2 3 4 5 6 | ||