Wilbac MFG Co., est 1940s

Museum Artifact: Expando Grand Slam Baseball Cap, c. 1960s

Made By: Wilbac MFG Co., 913 W. Van Buren St., Chicago, IL [Downtown / The Loop]

Research is underway on this one and a full write-up will be coming soon.

2 thoughts on “Wilbac MFG Co., est 1940s

  1. Although they didn’t join the Big Ten until 1949, this looks suspiciously like a Michigan State University Spartans block “S” logo and even though it was still Michigan State College at that time this logo has also been used by the MSU Varsity Club since 1915.

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