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).
Photograph of a failed 'Phantom III' clutch centre plate faced with Ferodo 'RC.6' material after a test.
| Identifier | ExFiles\Box 93\3\ scan0145 | |
| Date | 26th June 1936 guessed | |
| On label: 'PHANTOM III' BUGG A BRACK CLUTCH CENTRE PLATE FACED WITH FERODO 'RC.{R. Childs}6' MATERIAL. FACINGS .130 THICK - 1 MIN. AT 4,800 R.P.M. 175°C TEMPERATURE. OTHER FACING FLEW OFF. On part: FERODO REGISTERED TRADE MARK BRITISH MANUFACTURE S.U. 7 | ||