No date on this recipe insert but it’s probably from the 1980’s or 1990’s. The recipe is found on the back of a Cool Whip container label (the cardboard insert) and is typed in full below along with a scanned copy.
Lemony Pudding
Dissolve 1 envelope unflavored gelatin and 1/2 cup sugar in 1 cup boiling water. Mix in 6-oz. can Birds Eye Concentrate for Lemonade, thawed. Chill until slightly thickened. Place over larger bowl of ice and water; beat with rotary beater until fluffy and thick. Blend in 2 cups thawed Cool Whip. Chill until firm–about 2 hours. Makes 8 servings.