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- Picketing--Pennsylvania--Pittsburgh7
- African Americans--Civil rights--Pennsylvania--Pittsburgh6
- Civil rights movements--Pennsylvania--Pittsburgh6
- Civil rights workers--Pennsylvania--Pittsburgh6
- African American civil rights workers--Pennsylvania--Pittsburgh5
- Signs and signboards--Pennsylvania--Pittsburgh5
- Civil rights demonstrations--Pennsylvania--Pittsburgh4
- Men--Pennsylvania--Pittsburgh4
- African American men--Pennsylvania--Pittsburgh2
- Discrimination in employment--Pennsylvania--Pittsburgh2
- National Association for the Advancement of Colored People2
- Race discrimination--Pennsylvania--Pittsburgh2
- United States Steel Corporation--Employees2
- Women--Pennsylvania--Pittsburgh2
- Central business districts--Pennsylvania--Pittsburgh1
- Civic Arena (Pittsburgh, Pa.)1
- Demonstrations--Pennsylvania--Pittsburgh1
- Department stores--Pennsylvania--Pittsburgh1
- Discrimination in restaurants--Pennsylvania--Pittsburgh1
- Discrimination--Pennsylvania--Pittsburgh1