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 rotating mechanical assembly with a connecting rod, showing various measurements.
| Identifier | ExFiles\Box 168\5\ img263 | |
| Date | 27th December 1933 guessed | |
| 37° ℄ of METER .875 .343 | ||