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).
Confirming the satisfactory use of Shell spirit for Trials Cars.
| Identifier | ExFiles\Box 145\3\ scan0262 | |
| Date | 27th July 1937 | |
| S/W (Rm{William Robotham - Chief Engineer}). 1227 Cxl/ES.27.7.37. Petrol for Trials Cars. In reply to Rm{William Robotham - Chief Engineer}4/R.23.7.37, we are using the Shell spirit to which you refer. It seems quite satisfactory from all points of view and performance is not noticeably different under ordinary conditions. Cx.{Major Len W. Cox - Advertising Manager} | ||