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).
Questionnaire detailing the chassis number, test date, and costs for fitting a new part.
| Identifier | ExFiles\Box 66\2\ scan0294 | |
| Date | 9th April 1928 | |
| Ref 2210 Cars 1. The number of the first chassis on which the new part will be fitted. F2. 2. Date when the chassis will be handed to test. 9.4.28 3. Cost of scrapped material, if any. £27 4. Cost of jigs and tools. Nil. | ||