Pirates Made Uniform History – FOB Sports (Friends of Bob)

Heritage Uniforms and Jerseys and Stadiums - NFL, MLB, NHL, NBA, NCAA, US Colleges: Pittsburgh Pirates Uniform and Team History

We Are Family: Pirates Unveil New 1979 Throwback Jerseys - CBS Pittsburgh

Rumor] Pirates to bring back 70s throwback uniforms for 2016 season to replace Sunday Alternates. : r/baseball

Battlin' Bucs: Pirates Uniform History

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Uni Watch's Friday Flashback -- The Pirates go back to their bumblebee days - ESPN

Pirates Made Uniform History – FOB Sports (Friends of Bob)

Uni Watch's Friday Flashback -- The Pirates go back to their bumblebee days - ESPN

1929-30 Pittsburgh Pirates - The (unofficial) NHL Uniform Database

Bob Walk Jersey - Pittsburgh Pirates 1992 Away Throwback MLB Baseball Jersey

MLB Jersey & Cap History

Bob friend hi-res stock photography and images - Alamy