Champion Spark Plugs original vintage advertisement. Features
four world record holders: Max Conrad for single engine
light plane endurance (7,668 miles); Hugh Entrop for high speed
outboard motor boating (107.8 mph); Mickey Thompson for land
speed vehicle at the Bonneville Salt Flats (363 mph), and Rodger
Ward, high speed record holder at Indianapolis 500 at 135.8 mph.