First is 1.75" issued shortly after the assassination of Malcolm X and including the text "Our Black Shining Prince" and "'Freedom By Any Mean Necessary'". Next is a $1 donation button issued by "United Packing House Workers Of America/AFL-CIO/I Gave $1.00 For Labor And Civil Rights." Curl names maker Green Duck and button is c.late 1960s. First we've seen. Next with artwork by cartoonist Gary Trudeau was issued in support of Boston school integration with text "Keep The Buses Rolling/March On Boston May 17th!" This 1974 march and rally was sponsored by the NAACP. Button has a little tone on its very top edge in our photo but that is now gone and the piece displays Mint. Last is a 2.25" litho picturing Dr. King along with logo of "McDonald's" and it was issued to promote "Jobs And Justice Jan. 15, 1977/Full Employment Now/Martin Luther King, Jr. Center For Social Change." Extreme outer edge is missing a few hairlines of paint just barely visible at the top. Other than this, buttons display Mint.