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).
Receipt of experimental 10 m/m Champion sparking plugs and inserts.
| Identifier | ExFiles\Box 162\3\ img158 | |
| Date | 13th May 1939 | |
| 6000 To Roy.{Sir Henry Royce} c. to G/JWH. Rm{William Robotham - Chief Engineer}/RC.{R. Childs}2/JH.13.5.39. We have received personally from the Champion representative 7 10 m/m sparking plugs and 7 inserts. These are experimental and no charge is incurred. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||