For your consideration, here is a Vintage Our Time is Now Martin Luther King, Jesse Jackson Pinback Button, Pin.  It has some wear on it.  There is a little tarnish on the back.  It has a small scratch on it.  The button has a diameter of 1 5/8 inches.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (430.316u-.4px2)