Here are a couple interesting paper items I picked up recently. First is an ad for Flying Eight Raceways by International Manufacturing, Inc. of Eudora, Kansas - from Cash Box magazine, dated August 14, 1965. That was a publication for coin operated vending machines. Looks well done, but I've never seen mention of this anywhere else. Don't know how the $595 list price compares to competitors. And no details on cars, but controllers look like Russkits.
Now here's an odd one, from something called Incentive magazine, dated September 1965. This is described as a publication for "premiums", so I assume Strombecker sets were offered as premiums by the manufacturers cited, starting with Quaker Oats. In fact, I seem to remember Willard Battery offering the Strombecker Indy roadster without a motor... Strombecker probably did more advertising than any other manufacturer, except Aurora...