The 1974 World Series of Poker (WSOP) was a series of poker tournaments held in May 1974 at Binion's Horseshoe.
Main Event
There were 16 entrants to the main event in 1974. Each paid $10,000 to enter the tournament. The tournament had a winner-take-all format.
References
1974 World Series of Poker Wikipedia(Text) CC BY-SA