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).
From EFC to RHC requesting a spring anchor pin be fitted to two tungsten pointed ignition levers.
| Identifier | ExFiles\Box 35\6\ scan 355 | |
| Date | 9th November 1927 | |
| To RHC.{R. H. Coverley - Production Engineer} from EFC. X2894 EFC4/T9.11.27. Will you please have the spring anchor pin fitted to the two tungsten pointed ignition levers you handed herewith, as shown on LeC.2460. [Signature] EFC. | ||