The series of poker tournaments sponsored by the corporation formerly known as "Harrah's entertainment" uses what playing cards as their official cards?
Copag: Copag is a company based in São Paulo, Brazil. Copag:  The company expanded to making playing cards for poker and bridge in 1918. Copag:  With the recent poker boom, Copag's business has quickly grown. Copag:  In 2005, the World Series of Poker slated Copag as their official playing card supplier. Copag:  That same year, Copag became part of the Cartamundi group.
i don't know