Confirming instructions to fit car 21-EX with specific brake leverage and servo cams.
| Identifier | ExFiles\Box 12\5\ 05-page096 | |
| Date | 18th April 1929 | |
| X7420 To RHC. {R. H. Coverley - Production Engineer} from Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 2/LG18.4.29. X7370 This is to confirm that you will fit up 21-EX car with the original W.W. leverage from the brake pedal to the servo i.e., lever F.76811 to be 1.375" long with the corresponding links. You will fit 45° cams in the servo. Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} | ||
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).