This button was created in 1981 by famed Political Cartoonist Jules Feiffer in reaction to his personal issues with Nuclear Power, and the accident and apparent cover-up of the 1979 incident on Three Mile Island. It's very hard to describe how impossibly rare this button is. Very few were produced, they were made specifically for a small fundraiser that the Labor Commission for Safe Energy held in 1981. The only other example I've ever seen of this button is housed in the British Museum, and can be seen online here: http://www.britishmuseum.org/explore/highlights/highlight_objects/cm/j/jules_feiffer,_2_button_badges.aspx This button measures 2 Inches in diameter, and remains in pristine condition.