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).
Laboratory report cover featuring a photograph of two fractured metal rings.
| Identifier | ExFiles\Box 158\4\ scan0171 | |
| Date | 11th August 1937 | |
| ROLLS-ROYCE LABORATORY REPORT: H1/EJW.1/JN.11.8.37. M.{Mr Moon / Mr Moore} 1,383 | ||