Marc spotted this Champion Spark Plug Ad on eBay.

“Size is approximately 8.5″X12”
Original advertisement, not a copy
Shipped in a mailing tube OR in an envelope, between heavy cardboard in zip lock bag
All U.S. shipments include delivery confirmation
All ads are stored in a climate controlled, non-smoking environment
Grading, All of our ads are in “EXCELLENT” condition, nothing less. We would not sell an ad that we would not display ourselves. We are collectors first!”

View all the information on ebay