For your consideration, here is a 1993 Goofy's Kitchen Disneyland Hotel Salutes the Opening of Mickey's Toontown Pinback Button, Pin.  It has some wear on it.  There is a little 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.  (456.823w-.4px2)