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).
Specifying the chassis, test date, and costs for fitting a new part.
| Identifier | ExFiles\Box 6\1\ 01-page166 | |
| Date | 23th September 1929 | |
| The number of the first chassis on which the new part will be fitted. P. series. Date when chassis will be handed to test. 23.9.29 Cost of scrapped material, if any. Nil. Cost of jigs and tools. £100 | ||