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).
Specifying the design for the 10-EX bonnet to have plain side panels without shutters.
| Identifier | ExFiles\Box 66\3\ scan0185 | |
| Date | 13th July 1928 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} X8260 Hs{Lord Ernest Hives - Chair}/Rn{Mr Robinson}4/LGl3. 7. 28. The new bonnet which is being prepared for 10-EX should have perfectly plain side panels i.e. no shutters. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||