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).
Letter from the Managing Director, Bernard Hopps, requesting to be kept advised of any information regarding spark plug development.
| Identifier | ExFiles\Box 162\6\ img362 | |
| Date | 7th June 1940 guessed | |
| my attention and I should be glad if you could keep me advised of any information that may come your way regarding spark plug development. With kind regards, Sincerely yours, Bernard Hopps Managing Director. | ||