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).
List of sparking plugs fitted to various experimental cars.
| Identifier | ExFiles\Box 142\3\ scan0049 | |
| Date | 8th December 1936 | |
| 1204 SPARKING PLUGS ON EXPERIMENTAL CARS. 8.12.36. 30-EX. Champion NA{Mr Nadin}/8. 32-EX. Champion NA.{Mr Nadin}8. Exh.side. Bosch W.145.TI. Inl.side. 33-EX. Lodge X546 -EX. Lodge X546. RL.14. Fitted alternatively. 36-EX. Lodge X546 Inl.side. Champion NA.{Mr Nadin}9. Exh.side. 37-EX. K.L.G.932. 1.B.4. K.L.G.934. .B.4. K.L.G.850. 4.B.4. Champion LB.10(4) K.L.G.937 (2) 5.B.4. AC-XK.14. 6.B.4. K.L.G.940 B.23-AE. AC.XK.14. B.86.BN.{W.O. Bentley / Mr Barrington} AC.X399 Rm{William Robotham - Chief Engineer}/F.Dodd. | ||