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).
Confirming that tests on ignition coil No.4554 show no faults.
| Identifier | ExFiles\Box 70\3\ scan0104 | |
| Date | 10th June 1927 | |
| To Sft{Mr Swift}/Mr. Brock. X8783d EFC11/T10.6.27. X. 8783.- IGNITION COILS. Further to our EFC3/T17.5.27, tests of this coil (No.4554) have now been completed which enable us, together with our bench tests, to say definitely that there is nothing wrong with this coil. EFC. | ||