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).
The specification for production inspection and testing of new finer primary ignition coils in a redmanol case.
| Identifier | ExFiles\Box 70\4\ scan0019 | |
| Date | 16th December 1926 | |
| To SFT{Mr Swift}/Mr. Brock. c. EY. BY/RD. x8781cl EFCL/T16.12.26. FINER PRIMARY IGNITION COILS. 20 HP. & 40/50. Herewith please receive Specification of Production Inspection and Test of the new standard finer primary type coil in redmanol case. EFC. | ||