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).
Instruction to fit three ignition coils with 20,000 secondary turns to specific chassis.
| Identifier | ExFiles\Box 69\1\ scan0209 | |
| Date | 3rd June 1929 | |
| X 8710 RHC{R. H. Coverley - Production Engineer}/FW. from EFC. EFC7/AD3.6.29. IGNITION COIL WITH 20,000 SECONDARY TURNS TO D.{John DeLooze - Company Secretary} 71919. We hand you herewith three of these coils Nos. LS3, LS4, LS5. Will you please have these fitted to chassis 19-EX, 20-EX and 21-EX respectively, returning the coils thereon to us. EFC. | ||