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).
Blueprint detailing the installation of a Graham Supercharger on a Bentley engine.
| Identifier | ExFiles\Box 140\1\ scan0118 | |
| Date | 20th December 1934 | |
| GRAHAM SUPERCHARGER ON BENTLEY B.V. 69 NORMAL WATER JACKET CONNECTIONS WATER JACKET BOOST TEMPERATURE TAKEN HERE SHORT INTERMEDIATE PIPE R.H 20-12-34 | ||