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).
Wiring diagram of a grounded ignition system.
| Identifier | ExFiles\Box 52\3\ Scan284 | |
| Date | 25th November 1917 | |
| WIRING DIAGRAM OF GROUNDED IGNITION SYSTEM Drawing 6 MODEL 108 IGN. DIST. OR 209 "" MODEL 171 COIL OR 284 COIL MODEL 192 SWITCH. 6. VOLT BATTERY X814 25.11.1917 WALTER. H. {Arthur M. Hanbury - Head Complaints} JOHNSON 14. PANTON.ST. LONDON S.W.1. | ||