For your consideration, here is a 1978 Ducks Mere Animal Quackers Eat 'Em Up Huskies Football Game Pinback Button, Pin, Dated October 21, 1978, U of W, Sponsored by Kentucky Fried Chicken.  It has some wear on it.  There is some tarnish on the back of it.  The button has a diameter of 3 inches.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (478.751f-.4px2)