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).
Request to the Champion Sparking Plug Co. for a trial supply of L8S sparking plugs.
| Identifier | ExFiles\Box 162\3\ img034 | |
| Date | 4th November 1936 | |
| r6 000 Rm{William Robotham - Chief Engineer}/Wat.33/JH. 4th November 1936. The Champion Sparking Plug Co., 83, Pall Mall, London.S.W.1. Dear Sirs, Will you please arrange to supply us for experimental trial with 2 doz. L8S sparking plugs which, it is understood will run hotter and be less susceptible to oiling up than the LB.10. These plugs should have a threaded terminal shank at least ¼" long and 3BA thread or similar size. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||