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).
Request to manufacture three sets of modified relief valves for the Spectre production cars.
| Identifier | ExFiles\Box 96\2\ scan0061 | |
| Date | 23th September 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} X354 Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}24/KW.23.9.35. SpectreCodename for Phantom III. Will you please make 3 sets of modified relief valves for the production cars. They have borrowed the set from No. 3 SpectreCodename for Phantom III chassis which ran 10,000 miles, these having cured the relief valve noises. The following parts are required for the 3 complete sets. 9 off - Hs.{Lord Ernest Hives - Chair}2035. 3 " - Hs.{Lord Ernest Hives - Chair}2038. 6 " - Hs.{Lord Ernest Hives - Chair}2036. Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||