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).
List of new parts fitted to a car for a 10,000-mile run.
| Identifier | ExFiles\Box 67\2\ scan0007 | |
| Date | 22th January 1920 guessed | |
| X 3504 Extract from Hs{Lord Ernest Hives - Chair}2/LG5.1.20. X.3743. - PE CAR TO RUN 10,000 MILES. X.3647. New parts fitted. | Remarks. 25. Luggage Grid. X.3507. | 26. Silencer .5 lower than standard. X.3642. | To give more clearance between undershield, exhaust and cut-out. 27. Transverse wire tube for motor leads. X.2778. | 28. New bracket for hand pump. X.3444 | 29. Tungsten contacts on contact breaker. X.2894. | 30. Bonnet catches in new position. X.3709. | | ||