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).
The Bentley Silent Tappets, requesting a magnesium rocker cover be made.
| Identifier | ExFiles\Box 88\4\ scan0134 | |
| Date | 22th March 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} x254 Hs{Lord Ernest Hives - Chair}/Smth.5/KW.22.3.35. Bentley Silent Tappets. The details for this scheme have now been issued. We ought to be able to use a magnesium rocker cover with this arrangement, so will you please make us one. Hs{Lord Ernest Hives - Chair}/Smth. | ||