Testing of 7.5' tyres on a Phantom III model.
| Identifier | ExFiles\Box 158\1\ scan0181 | |
| Date | 27th April 1938 | |
| 1339 W/S. {Derby Works / Sales} Cx. {Major Len W. Cox - Advertising Manager} from Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} Rm {William Robotham - Chief Engineer} /Gry {Shadwell Grylls} 1/R.27.4.38. 7.5" tyres on P.III. With regard to your memo Cx {Major Len W. Cox - Advertising Manager} 5/KW25.4.38., we cannot usefully test the tyres you have removed from your Trials car, because we have at the Works a set of tyres made from the latest mould which are very much quieter. We shall report on the behaviour of these in due course. Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} | ||
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).