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 drawing for an Oil Dip Stick PII Synchromesh.
| Identifier | ExFiles\Box 15\5\ Scan321 | |
| Date | 7th June 1932 guessed | |
| Hs{Lord Ernest Hives - Chair} 619, 9.020, 9.500, -100, .312 DIA, AS ON STD PII, NOT TO SCALE, SCALE 1/1, 9.030, 8.500 TO NOTCH, OIL DIP STICK PII SYNCHROMESH, 7 PINTS | ||