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).
Sending two types of Champion sparking plugs, N.A.8 and N.A.9, for trial on vehicle 32-EX.
| Identifier | ExFiles\Box 91\2\ scan0194 | |
| Date | 30th July 1937 | |
| Rm{William Robotham - Chief Engineer}/IMW.{Ivan M. Waller - Head of Chateauroux} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} 300a Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}7/R.30.7.37. We have to-day sent you 24 N.A.8 Champion sparking plugs which we wish you to fit to 32-EX. We have also sent 12 N.A.9 plugs. We wish you to give these a trial if the N.A.8 are not satisfactory. In any case, try to give them a run during the latter part of the mileage. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||