Pirates' 1970s mid-season uniform switch - old cap and/or helmet used with new uni - Sports Logo News - Chris Creamer's Sports Logos Community - CCSLC - SportsLogos.Net Forums
Bringing it back: Pirates show off throwback uniforms
pittsburgh pirates sports - Gem
Pirates unveil baseball's freshest look with 1979 throwback uniforms
Pirates Bring Back Pillbox, Complete 1979 Look for New Uniform – SportsLogos .Net News
pittsburgh pirates sports - Gem
Photos: Pirates Bring Back Pillbox, Debut Retro Uniform – SportsLogos.Net News
Pirates unveil baseball's freshest look with 1979 throwback uniforms - Democratic Underground
Rumor] Pirates to bring back 70s throwback uniforms for 2016 season to replace Sunday Alternates. : r/baseball