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 two battery ignition contact breaker springs with a larger set.
| Identifier | ExFiles\Box 32\5\ Scan046 | |
| Date | 26th October 1926 | |
| X6096 To RHC.{R. H. Coverley - Production Engineer} from EFC. EFC1/T26.10.26. Further to our conversation of a few days ago, would you kindly provide us with two battery ignition contact breaker springs of similar rating to standard, but of about 30 to 40° larger set. EFC. | ||