Description:Chicago White Sox professional model hat c.1950s. Black hat displaying embroidered "SOX" block letter logo on front retains majority of "Tim McAuliffe" label on interior leather band which is also stamped "6 7/8 KM Pro Cap." Evident usage throughout with light soiling and a hint of discoloration on brim. "Berres 37" written on underside of brim. Includes letter of provenance: EX-EX/MT