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).
The submission of Lodge Sparking Plugs to the Test Department.
| Identifier | ExFiles\Box 162\6\ img058 | |
| Date | 11th June 1923 | |
| X4425 LODGE SPARKING PLUGS. 1 doz. C.65.103 handed to Test Dept for test. 1 " " " " TMW. " " Hs.{Lord Ernest Hives - Chair} 11.6.23. | ||