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).
Question regarding lead oxide deposition on spark plug electrodes.
| Identifier | ExFiles\Box 162\4\ img158 | |
| Date | 29th July 1936 guessed | |
| - 2 - (d) Can lead oxide be deposited on the electrodes in such a way as toraise the sparking plug voltage. Awaiting your reply. Yours sincerely, | ||