MLB Jersey & Cap History
Pirates' 1970s mid-season uniform switch - old cap and/or helmet
Battlin' Bucs: Pirates Uniform History
Athletics's and Pirates don 1970s throwback uniforms 6.26.10 pt1
MLB Jersey & Cap History
Pirates Made Uniform History – FOB Sports (Friends of Bob)
Battlin' Bucs: Pirates Uniform History
MLB Jersey & Cap History
MLB Jersey & Cap History
Uni Watch's Friday Flashback -- The Pirates go back to their
Uniform designs broke all the rules during 1970s
Pirates' 1970s mid-season uniform switch - old cap and/or helmet