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).
Comparison of the performance of lead-bronze against aluminium-tin.
| Identifier | ExFiles\Box 115\5\ scan0222 | |
| Date | 6th December 1938 guessed | |
| 11. against lead-bronze, as being the only other material which approaches the aluminium-tin in performance. | ||