A road gray Chicago White Sox jersey, this #21 MacGregor top has size 44 tagging and vented arms with no holes or stains. While there is very slight fading to the Chicago across the button-front breast and the 21 on back, this 1957 issue worn by Jerry Staley rates in Excellent condition overall. Staley spent six of his 14 pro season with the Pale Hose, and amassed an overall record of 134-111.
Addendum: There is a "Set 1 1957" tag on the inside tail.