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 of a throttle flange joint for 4 1/4 and 3 1/2 litre engines.
| Identifier | ExFiles\Box 131\4\ scan0279 | |
| Date | 8th June 1937 guessed | |
| 4 1/4 LITRE 3/8" STUDS & NUTS THESE ENDS ARE SQUASHED IN 3 1/2 LITRE 5/16" STUDS & NUTS. THROTTLE FLANGE JOINT. | ||