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 illustrating three different designs of Bentley crankshafts.
| Identifier | ExFiles\Box 85\5\ scan0091 | |
| Date | 29th January 1935 guessed | |
| BENTLEY CRANKSHAFTS 7 BEARING - STANDARD. 7 BEARING - NARROW PIN. 4 BEARING - NARROW PIN. | ||