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).
Quoting Mr. Royce's remarks on sourcing valve springs and preferred material.
| Identifier | ExFiles\Box 80\3\ scan0148 | |
| Date | 29th April 1913 | |
| R.R. 235a (100H) PP 289 13 12.12) G 4057 AW/SM6/L29413 Re Valve Springs. - X.290 Order Office 29-4-13 In reference to the valve springs ordered from Messrs Terry & Sons Mr Royce remarks :- "These should be hopeful, the other names "do not seem to have much to recommend "them, cannot we get the same material "as Woodheads, i.e. silicon chrome "steel." Mr Royce also remarks elsewhere but in the same connection :- "The names from France sound more like "retailers then manufacturers. W llis "would go and find out." p. A.{Mr Adams} Wormald. | ||