Durham Bulls vs. Charlotte Knights 7/3/2004 - Durham Bulls Athletic Park.  AAA International League.  This seems like a full ticket, not just a stub.   

The 2004 Durham Bulls had many future or past Major League players on their roster including B.J. Upton, Bubba Trammell, Matt Diaz (who had 93 RBI in Durham in 2004) and even Fred McGriff!

Shipped in a plastic holder, between two pieces of cardboard in a bubble mailer with tracking.