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).
Request to obtain a patent specification for a 'Nearly Closed Iron Circuit Ignition Coil'.
| Identifier | ExFiles\Box 54\4\ Scan059 | |
| Date | 19th May 1925 | |
| X4654 To BY {R.W. Bailey - Chief Engineer} /NHW. from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 4/T19.5.25. Would you kindly obtain for me Patent Specification No.199879 of 1922, the author of which is Dr. E.O. Turner, and the subject matter of which is 'Nearly Closed Iron Circuit Ignition Coil'. EFC. {E. Fowler Clarke - Electrical Engineer} | ||