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).
Fitting Lodge X434/1 stellited and non-stellited spark plugs to a Bentley for a comparative test.
| Identifier | ExFiles\Box 162\6\ img273 | |
| Date | 29th December 1934 | |
| 84425e. HS{Lord Ernest Hives - Chair}/Whym. c. to HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} HS{Lord Ernest Hives - Chair}/Wst.4/MA. 29.12.34. LODGE X434/1 PLUGS FOR BENTLEY. We are handing you herewith 6 Lodge X434/1 Bentley sparking plugs. Three of these have stellited central electrodes, stellited by RHC{R. H. Coverley - Production Engineer}, and these are marked with an ST.{Capt. P. R. Strong} Will you please have these fitted to 1.B.IV in alternate cylinders with the three non-stellited plugs for comparative test. HS{Lord Ernest Hives - Chair}/Wst. | ||