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).
Order for two types of Champion sparking plugs.
| Identifier | ExFiles\Box 35\3\ scan 169 | |
| Date | 26th May 1927 | |
| XC4196 To Roy{Sir Henry Royce}/Ms. from Hs.{Lord Ernest Hives - Chair} Hs{Lord Ernest Hives - Chair}4/LG26.5.27. Please order for us :- 3 doz. R1. Champion sparking plugs. 3 doz. R12 Champion sparking plugs. Hs.{Lord Ernest Hives - Chair} | ||