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).
Alteration of details for silent tappets for the Spectre.
| Identifier | ExFiles\Box 96\2\ scan0017 | |
| Date | 17th December 1934 | |
| X 354 To By.{R.W. Bailey - Chief Engineer} c. to RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}8/KW.17.12.34. Silent Tappets for the SpectreCodename for Phantom III. Will you please note that details of the silent tappets for the SpectreCodename for Phantom III should be altered in accordance with the two notes attached herewith. Att: Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}5/KW.12.12.34. Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}1/KW.6.9.34. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||