The series of poker tournaments sponsored by the corporation formerly known as "Harrah's entertainment" uses what playing cards as their official cards?
Copag:  It started as a printing company in 1908. Copag:  The company expanded to making playing cards for poker and bridge in 1918. Copag:  In 2005, the World Series of Poker slated Copag as their official playing card supplier.
i don't know