David Cone's perfect game happened in 1999.
It is worth whatever someone is willing to pay for it. I sold a David Wells pefect game ticket the year before for almost $500. It wasnt even a full mint condition ticket either.
David Cone's in '99
Cy Young's perfect game happened in 1904.
Dallas Braden's perfect game happened in 2010.
Mark Buehrle's perfect game happened in 2009.
Philip Humber's perfect game happened in 2012.
Roy Halladay's perfect game happened in 2010.
In David Wells' perfect game on May 17, 1998, he struck out 11 Minnesota Twins batters.
Armando Galarraga's near-perfect game happened in 2010.
Perfect Dark - Game Boy Color - happened in 2000.
Joe Girardi.
David cone