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 comparing the valve timing diagrams for Buick and Bentley engines.
| Identifier | ExFiles\Box 4\1\ 01-page174 | |
| Date | 5th December 1934 guessed | |
| BUICK TIMING., IO 13 1/2, EC 43 1/2, IC 66, EO 68 1/2, .008 CLCE., BENTLEY TIMING., IO 10 1/2, EC 13 1/2, 59 1/2 IC, 56 1/2 EO, .008 CLCE. | ||