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).
Order request for two dozen modified spark plugs for the Peregrine engine from Lodge Plug Co. and K.L.G. Sparking Plug Co.
| Identifier | ExFiles\Box 58\3\ Scan156 | |
| Date | 8th August 1932 | |
| Roy. {Sir Henry Royce} from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} X1918b. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 10/AD 8.8.32. PLUGS FOR PEREGRINE. X4425 Will you please order from the Lodge Plug Co. one dozen 14 mm. HD. {Mr Hayward / Mr Huddy} 14.3 type plugs " " A.15 plugs modified as per our letter Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 8/AD. of today's date. also from the K.L.G. Sparking Plug Co. one dozen L.K.S.6. 14 mm. plugs modified as per our letter Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 9/AD. of today's date. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||