Vintage 1940s Peter Paul Charcoal Gum Retailer Incentive Coupon

Here's a vintage 1948 retailer coupon for Peter Paul's Charcoal Gum in excellent condition. These were offered to store owners who sold this product as an incentive to buy more. The retailer could redeem this coupon and one empty box of Charcoal Gum for ten cents additional profit. This certificate refers to a "big coast to coast radio campaign" that is making thousands of new customers for the product. Printed on card stock, it is in red, white and black and has an expiration date of June 1, 1948. Scarce chewing gum collectible!