Photograph of Margaret McDonald standing beside a display for Certo on set. There is a sign that reads "Easy to make. 15 minutes... 9 cents a glass" including an illustration of a jar with a label that reads "Pineapple Jam." McDonald is holding up a bottle of Certo and a package of Sure-Jell Certo. She is wearing a patterned dress and accessories. Her hair is in an updo. She is smiling and looking at the camera. Behind her, there is a backdrop with spiral designs.