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).
Recommendation to obtain Champion Sparking Plugs for 20 HP & 40/50 HP chassis testing.
| Identifier | ExFiles\Box 35\3\ scan 153 | |
| Date | 19th November 1924 | |
| X4196 To EWT/CEP. from Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}10/LG19.11.24. Re. 20 HP. & 40/50 HP. Chassis Testing - Sparking Plugs. Handwritten notes: V1812, x4196 (struck through), x1918, x4091 Referring to EWT/CEP6/EC13.11.24. We recommend that you obtain a few Champion Sparking Plugs. These stand a considerable amount of oil without sooting up. Hs.{Lord Ernest Hives - Chair} | ||