Color postcard showing an advertisement for Kellogg's Rice Krispies, picturing a little girl on a swing. Caption on front: Swing to Crispness These golden bubbles of luscious rice bespeak their crispness with a Snap! Crackle! Pop! Enjoy a bowlful with sweet, cool milk or crea right now! Then share the treat with your entire family by buying a full-size package today. ...Try Rice Krispies Marshmallow Squares, the homemade treat!