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 testing of 'Vallier' Spark Plugs from Messrs. Parker & French.
| Identifier | ExFiles\Box 33\3\ Scan068 | |
| Date | 1st June 1920 | |
| RR 235 B (50 T) (S.G. 504 8-1-20) G 2585. X.1812-b. To Hs.{Lord Ernest Hives - Chair} from Bn.{W.O. Bentley / Mr Barrington} Bn{W.O. Bentley / Mr Barrington}4/W25. 6. 20. c. to EFC. X.1812 Re "Vallier" Sparking Plug I send you herewith letter from Messrs. Parker & French relating to a set of plugs which they have sent to us for test, and also a copy of my reply. I shall be glad if you will deal with this matter. Bn.{W.O. Bentley / Mr Barrington} 2 encs. RECEIVED. E C JUN 98 10 | ||