Troy Aikman Signed Dallas Cowboys Logo Ball.. Sportsmemorabilia.com stands behind every item we offer, and all of our pieces are guaranteed authentic. Compare Aikman's stats to anyone else and you'll see why collectors love pieces like this. Amazing autograph quality. The sports memorabilia market is pretty steady, and items like this tend to increase in value. Every one of these great looking pieces is certified by Sportsmemorabilia.com's numbered hologram. In 2006, the seven-time Pro Bowl selection was inducted to the Pro Football Hall of Fame. Every item sold on Sportsmemorabilia.com has passed our quality evaluation process. Since Troy Aikman doesn’t usually do official signings, pieces like this are in high demand. Comes fully certified with Certificate of Authenticity and tamper-evident hologram.