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 details for fitting a new part to a chassis, including costs and test dates.
| Identifier | ExFiles\Box 105\1\ scan0031 | |
| Date | 27th November 1928 | |
| (1) The number of the chassis on which the new part will be fitted. 101 in 'N'. (2) Date when chassis will be handed to test. 27.11.28 (3) Cost of scrapped material, if any. Nil. (4) Cost of jigs and tools. £90 | ||