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. concerning comparative tests of various spark plug models.
| Identifier | ExFiles\Box 79\1\ scan0124 | |
| Date | 14th August 1918 | |
| Page 2 L.S.P. Co. Ltd. Date 14/8/18 Messrs.Rolls-Royce Ltd. to make any comparative tests with these plugs against the Model KR3 and the KR4 plugs. We are making up some further experimental KR5 plugs fitted with a composite Copper & Steel Pin, which we shall hope to forward you very shortly for test. Awaiting your reply with interest, we beg to remain, Yours faithfully, THE LODGE SPARKING PLUG CO. LTD. Bernard Hopps DIRECTOR P.S. We have just heard from Lieut.Travers that he is coming over to your Works this week, and we shall be glad if you will bring the enclosed Model KR4 plugs to his attention BH Encl. (Plugs) ENCLOSURE No 73 ENCLOSURE No 73 | ||