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 examination of spark plugs received from Messrs. Douglas Seaton Ltd.
| Identifier | ExFiles\Box 47\2\ Scan261 | |
| Date | 30th April 1930 | |
| Ho/Rm{William Robotham - Chief Engineer} X4117 S/W There's a matter for your attention rather than mine. 4328 C4/C30.4.30. Re GFN-52...Dr.James Thompson. you have I know full experience of watts plugs. It looks like the Riculium in R1/M254 30 By we have received from Messrs. Douglas Seaton Ltd. We are sending you the plugs. Will you please examine them and let us know what we should say. C. [Stamp: RECEIVED 30 APR 1930] To Store No. 303 4 | ||