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).
Internal request to order experimental stock of K.L.G. sparking plugs.
| Identifier | ExFiles\Box 162\4\ img253 | |
| Date | 10th February 1937 | |
| 6001b. HPS{Horace Percy Smith - Experimental Factory Mgr}/CEP from Rm{William Robotham - Chief Engineer}/Wst. Rm{William Robotham - Chief Engineer}/Wst7/M.10.2.37. Will you please order for us as Experimental Stock 6 DBZ R893 K.L.G. Sparking Plugs. Rm{William Robotham - Chief Engineer}/Wst. | ||