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Creator
- Unidentified Creators 6
- Communist Party USA 5
- Peace and Freedom Party (Philadelphia, Pennsylvania) 5
- Anti-Defamation League of B'nai B'rith (New York, New York) 4
- Lee Cultural Center (Philadelphia, Pennsylvania) 4
- Monteiro for Congress Committee (Philadelphia, Pennsylvania) 4
- Organization of Solidarity with the People of Asia, Africa and Latin America (Havana, Cuba) 4
- Philadelphia Social Science Forum (Philadelphia, Pennsylvania) 4
- Association for the Study of Negro Life and History (Washington, District of Columbia) 2
- Black House (Philadelphia, Pennsylvania) 2
- Black Panther Party (Philadelphia, Pennsylvania) 2
- Civil Rights Congress (New York, New York) 2
- Committee to Defend Fletcher Mills (Philadelphia, Pennsylvania) 2
- Congress of Racial Equality (Philadelphia, Pennsylvania) 2
- National Alliance Against Racist and Political Repression (New York, New York) 2
- National Association for the Advancement of Colored People (New York, New York) 2
- National Association for the Advancement of Colored People (Northeastern Region) 2
- Thomas Nabried Center for Marxist-Leninist Education (Philadelphia, Pennsylvania) 2
- African Cultural and Historical Society (Philadelphia, Pennsylvania) 1
- African-Americans for Friendship and Retainment of Our Image, Culture and Arts (New York, New York) 1