How the Pittsburgh Pirates sparked a uniform revolution in the 1970s - ESPN

Pirates to wear 1979 throwback uniforms for Sunday games - Sports Illustrated

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

How Upper Deck did the '70s

MLB — Coley Harvey Blog — Coley Harvey

Remembering Baseball's Right-Wing Rotation - The Ringer

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

How did the Pittsburgh Pirates get their name?

Pirates 6-7 Phillies (Sep 27, 2023) Game Recap - ESPN

The Good, the Bad, & the Ugly: Pittsburgh Pirates by John McCollister, Steve Blass - Ebook

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

Brush with greatness: U.L. Washington

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

Baltimore Orioles - Wikipedia