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- Lee Cultural Center (Philadelphia, Pennsylvania)4
- Organization of Solidarity with the People of Asia, Africa and Latin America (Havana, Cuba)4
- Peace and Freedom Party (Philadelphia, Pennsylvania)4
- Philadelphia Social Science Forum (Philadelphia, Pennsylvania)4
- Black Panther Party (Philadelphia, Pennsylvania)3
- Thomas Nabried Center for Marxist-Leninist Education (Philadelphia, Pennsylvania)3
- Unidentified Creators3
- Black House (Philadelphia, Pennsylvania)2
- Communist Party USA2
- Monteiro for Congress Committee (Philadelphia, Pennsylvania)2
- African-Americans for Friendship and Retainment of Our Image, Culture and Arts (New York, New York)1
- Association for the Study of Negro Life and History (Washington, District of Columbia)1
- Bel-Ad Records (Los Angeles, California)1
- Black Community Fund (Philadelphia, Pennsylvania)1
- Black Fire Production (Washington, District of Columbia)1
- Comay Productions (New York, New York)1
- Committee to Defend Fletcher Mills (Philadelphia, Pennsylvania)1
- Committee to Free Angela Davis (Philadelphia, Pennsylvania)1
- Communist Party USA (New York, New York)1
- Congress of Racial Equality (Philadelphia, Pennsylvania)1