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).
Extract from Mr Royce's memo regarding ordering steel springs from multiple makers.
| Identifier | ExFiles\Box 80\3\ scan0234 | |
| Date | 28th February 1913 guessed | |
| Extract from Mr Royce's memo R8/B26213 Re X. 74 Surely it is not a long job to order a few dozen springs from half a dozen makers to the same model, of the best steel. R | ||