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).
Letter from The Lodge Sparking Plug Co. Ltd. regarding the satisfactory testing of spark plugs and an enclosure note for more plugs.
| Identifier | ExFiles\Box 79\1\ scan0196 | |
| Date | 22th September 1919 guessed | |
| the Model MB. and Model B. Plugs which we sent you for test in your car engines, and we hope to hear that these plugs have proved satisfactory. Awaiting the favour of your reply, Yours faithfully, THE LODGE SPARKING PLUG CO, LTD. Bernard Hopps. DIRECTOR. Enc. (2 dozen Model D13. Plugs) | ||