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).
Chassis series for a new part, its test date, and associated material or tool costs.
| Identifier | ExFiles\Box 168a\2\ img095 | |
| Date | 26th November 1932 | |
| The number of the first chassis on which the new part will be fitted.... 'O' Series. Date when chassis will be handed to test.... 26th. Nov. 1932. Cost of scrapped material, if any... Nil. Cost of jigs and tools.... Nil. | ||