This is a Orville Redenbacher popcorn RC Cola offer that would hang from 6 packs of bottles. This ad campaign took place in the Summer of 1976.
Get ready for your summer time fun with RC Cola and a FREE 4 oz. trial size of Orville Redenbacher’s Gourmet Popping Corn…it makes up to 4 quarts of the best popcorn you’ve ever eaten, it’s the world’s best.
Here’s how: Send three RC Cola Crown liners from the RC Cola bottle caps (please do not send caps) or the words “RC Cola” printed on a 3×5 plain sheet of paper, plus $.10 toward postage and handling and this mail-in certificate.
Offer Expires December 31, 1976