3" showing Malcolm, building to his left and crowd of people below. Upper rim reads "Human Rights Is The Right To Self-Determination." Text on bottom edge "Join The National Black Human Rights Coalition." Left side has narrow panel where the bkg. is just a little darker in tone than the rest of the button and on the far left edge there is just the slightest trace of a small stain mark between the words "Human Rights." Still displays very cleanly and with high gloss. Covered tin reverse has oxidation stains but no heavy rust. VF and first we've seen.