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).
Fitting strengthened valve springs to a Spectre No. 2 unit.
| Identifier | ExFiles\Box 96\2\ scan0015 | |
| Date | 14th November 1934 | |
| +4694 354 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}6/KW.14.11.34. SpectreCodename for Phantom III. When rebuilding No. 2 unit will you please have fitted the strengthened valve springs asked for in the memo. Hs{Lord Ernest Hives - Chair}/Swdl.{Len H. Swindell}9/KW.22.10.34. The number of these springs is Hs.{Lord Ernest Hives - Chair}1607. Hs{Lord Ernest Hives - Chair}/L.H.Swindall. | ||