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).
Properties of steel versus yellow brass for a specific purpose.
| Identifier | ExFiles\Box 35\3\ scan 143 | |
| Date | 12th April 1921 | |
| Contd. -2- R6/G12.4.21. stiff to a red heat. I do not suggest tungsten steel for this purpose, but an ordinary steel is far different from yellow brass. R.{Sir Henry Royce} | ||