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).
Advertisement for Express spark-plugs, highlighting their performance in oily motors.
Identifier | ExFiles\Box 33\3\ Scan072 | |
Date | 24th July 1920 guessed | |
EXPRESS SPARK-PLUGS EXPRESS THE HEART OF THE MOTOR PERFORM IN OILY MOTORS | ||