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).
The selection of sparking plugs for the 3 1/4 Litre Bentley.
| Identifier | ExFiles\Box 3\4\ 04-page389 | |
| Date | 7th July 1933 | |
| To BY/SS.{S. Smith} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c.c. BDY. c.c. E.Dept. c.c. MX.{John H Maddocks - Chief Proving Officer} 3 1/4 LITRE BENTLEY - SPARKING PLUGS. We shall not be in a position to recommend definitely a sparking plug for the first 15 production chassis until the end of August. We are confident, however, that the plug selected will be one of the two we have given you. The most economical procedure would be to order "half and half", until the final decision is made. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||