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, with remarks on the reasons for the changes.
| Identifier | ExFiles\Box 40\1\ Scan026 | |
| Date | 5th January 1920 | |
| X.3524 Extract from Hs{Lord Ernest Hives - Chair}2/LG5.1.20. X.3743. - RE CAR TO RUN 10,000 MILES. X.3647. ----------------------------------------- This car will leave here on Wednesday. It is fitted with the following new parts. | New parts fitted. | Remarks. | | :--- | :--- | | 19. Taper Pivot Pins. X.3441. | To make them easier to dismantle. | | 20. Taper ball ends on steering levers. X.3416. | | | 21. Spring on Dynamo Tension Rotor. X.3772. | To overcome noise. | | 22. Whittle Dynamo belt made up of half links. X.3735. | To overcome noise. | | 23. "Benzine" Oil & Pressure Gauges. Oil gauge reads up to 380 lbs. X.3547. | | | 24. Petrol Tank filler brought to the sides. X.3755. | | MADE IN CROWLEY | ||