For your consideration, here is a Vintage Retro 1980 K. H. S. F. no. 178 Pinback Button, Pin.  I do not know what K. H. S. F. stand for.  It has a little wear on it.  There is a some tarnish on the back.  The button has a diameter of 1 1/4 inches.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (411.790k-.4px2)