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).
Confirming the despatch of HD.3 sparking plugs to Lillie Hall and specifying gap settings.
| Identifier | ExFiles\Box 18\3\ Scan355 | |
| Date | 8th September 1932 | |
| x7960. To Sg.{Arthur F. Sidgreaves - MD} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} 21/KT. 8.9.32. We have today despatched to Lillie Hall 12 HD.{Mr Hayward/Mr Huddy}3 type sparking plugs for use on your car. These should be set to .020" gap for the coil and .020" for the magneto. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||