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 30° Cam for a PII Synchromesh mechanism.
| Identifier | ExFiles\Box 15\5\ Scan259 | |
| Date | 31th January 1932 | |
| Hs{Lord Ernest Hives - Chair} 564 31.1.32 No 2798/2 30° .620 .137 .5 30° CAM PII SYNCHROMESH | ||