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 Aris Sparking Plugs, detailing different models and their construction.
| Identifier | ExFiles\Box 33\3\ Scan055 | |
| Date | 8th March 1920 guessed | |
| SUPPLIED TO BRITISH AND ALLIED GOVERNMENTS. MOTOR CAR TYPES. MOTOR CYCLE TYPE. AVIATION TYPE. ARIS ALL ELECTRODES ARE OF PURE NICKEL. TYPE V.1 BRASS. TYPE V.2 BRASS. TYPE V.3 BRASS NICKELED. TYPE MOTOR CYCLE STEEL. TYPE AVIATION THREADS — UNIVERSAL, AMERICAN, CONICAL. THE ARIS SPARKING PLUG. PLUGS FOR ALL TYPES OF ENGINES. A REVOLUTION IN SPARKING PLUGS. LONGEST USE. GREATEST SATISFACTION. [Diagram Section] Lock Nut Steatite Centre Rod Plastic Metallic Joints Brass Barrel Nickel Electrodes SECTION | ||