Pirates ditch Jolly Roger on uniforms, make 'P' the primary logo - Sports Illustrated
Pirates adopt gold 'P' as primary logo, replacing Jolly Roger design
Pittsburgh Pirates Batting Practice Logo - National League (NL) - Chris Creamer's Sports Logos Page
Pirates in the arts and popular culture - Wikipedia
Pirates ditch Jolly Roger, make 'P' primary logo - The San Diego Union-Tribune
Pittsburgh Pirates Practice Uniform - National League (NL) - Chris Creamer's Sports Logos Page
2018 Houston Football Media Guide by David Bassity - Issuu
Pirates make changes to logo, uniform
Seven Days, February 22, 2023 by Seven Days - Issuu
Pittsburgh Pirates ditch Jolly Roger, make gold 'P' primary logo
Pirates make changes to logo, uniform
PR, Pure & Simple: Pirates' Logo Shift a Lesson on Brand Equity
Fifty Years in Wall Street
History Archives - The Atavist Magazine