I don't recall seeing a poker chip this large. I needed any chip from BPOE lodge #375 (Mason City, Iowa), so grabbed this plastic chip on eBay. Though it was in the description, it went over my head that it is 2-1/2 inches! If I can get more, I'll post them here for sale.

Robert
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Wild Bill Elliott (right) in "Waco" (1952).
http://www.antiquegamblingchips.com/StillsD_Westerns.htm