MLB Jersey Numbers: the 80s — A Foot In The Box
Every uniform number ever, ranked by value
Uniform number (Major League Baseball) - Wikipedia
Uni Watch Show and Tell: An Early-'80s MLB Style Guide
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Every uniform number ever, ranked by value
Best Player for All 101 Uniform Numbers in MLB History
Best Player for All 101 Uniform Numbers in MLB History
89: Last MLB uniform number finally issued – KIRO 7 News Seattle
Ranking the best MLB players who wore No. 20, including Frank Robinson and Mike Schmidt
Best Player for All 101 Uniform Numbers in MLB History