1951 Champion Spark Plug and Whizzer Ambassador Electric Bike Ads

This original 7 x 9"  1951 magazine page has two great collectable ads front and back.  The front ad is for Champion Spark Plugs used in racing, and airlines.  Shows a nice illustration of vintage racers.  On the back is a coupon to send off to get more information on the Whizzer Ambassador electric Bicycle, quite popular back then.  This ad has been cropped in the photo only.