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).
Note regarding ignition coil X.6011 for 18-GIV, specifying use of special British bakelite material.
| Identifier | ExFiles\Box 61\1\ scan0122 | |
| Date | 23th June 1930 | |
| X6011. RHC.{R. H. Coverley - Production Engineer} from EFC. c. Hs{Lord Ernest Hives - Chair}/AJL. EFC4/AD23.6.30. X.6011. IGNITION COIL FOR 18-GIV. Will you please note this will be the ignition coil L.I.10 which is present standard with the exception of the coil case this being of the special British bakelite material X.616B. EFC. HEW. | ||