Sizes are 7/8" to 2.25". First five buttons in top row relate to Biafra famine of the 1970's. Next is anti-Columbia University investment in South Africa. Next is 1964 "NAACP Member" button. Next are pair of buttons for "1968 Poor People's Campaign." Next shows clenched fist followed by button with quotation from Black Panther leader Eldridge Cleaver. In last row is reference to black leader W.E.B. DuBois. Next is "Fight Racism." Next is button opposing court decision with title "Anti-Bakke Decision Coalition." Last are two of the same for 8/27/1983 event "March On Washington" showing Martin Luther King. Trace of age on the "Bakke" button but the others are Exc. to Mint.