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).
Spark plugs fitted to car 49-GB.
| Identifier | ExFiles\Box 35\3\ scan 117 | |
| Date | 28th September 1920 | |
| S.B. 288a (100 T) S.H.89. 22-7-20 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2769 X.4196. To Hs.{Lord Ernest Hives - Chair} from GWH.{George W. Hancock - Head Chateauroux} 28.9.20. X.3762. PLUGS FITTED TO 49-GB CAR. X.4196. X.3905. Magneto - 3 detachable Champion plugs. 3 Champion ribbed plugs. Coil Ignition - 3 A.C. Titan Plugs. 3 Bougie Gilardonia Plugs. Mileage of car when fitted - 27,782. G.W.H. | ||