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).
Transfer and refitting of a 20 HP ignition coil.
| Identifier | ExFiles\Box 45\4\ Scan170 | |
| Date | 17th July 1923 | |
| X4079 EFC/T17.7.23. X.4079 - 20 H.P. IGNITION COIL. Coil TG1 taken from 40/50 test engine (replaced by SB{Mr Bull/Mr Bannister}1) and handed, together with 4TG3 from bench, to Mr. Brock to be fitted up in new Redmanol cases. EFC. | ||