Andy's right - Brunson won WSOP with a 10-2 in both 1976 and 1977.

Here's cartoon of Brunson and his starting hand from his 1978 book titled "Super/System". (The hand shown is suited in spades, but I believe he actually won with unsuited cards.)

Hope all tournament players are taking notes, as there will be a pop-quiz on this trivia before it starts (just kidding).