IRVING, Texas -- After every one of his touchdowns, Emmitt Smith has kept the ball tucked under his arm for safekeeping rather than spiking it in celebration.

Through 13 seasons with the Dallas Cowboys, Smith has amassed quite a collection of footballs and other memorabilia while becoming the NFL's career rushing leader and scoring a record 150 rushing touchdowns.

Emmitt's Auction Items

A partial list of about 50 items of Emmitt Smith memorabilia that will be available in an online auction for charity. Bidding on the items begins Nov. 25, and the sale ends Dec. 13. The entire list can be viewed at www.mastronet.com, where bids can be placed. Footballs from his first, 100th and 124th rushing TDs, the latter breaking Marcus Allen's NFL record of 123 rushing TDs. Football that Smith carried to surpass 15,000 yards. Game ball from Super Bowl XXVII, the first of three Super Bowls for Smith. Game ball from Jan. 2, 1994 game against the New York Giants, considered by many the greatest game Smith ever played. Several commemorative footballs. A jersey, helmet, cleats, mouthpiece and even the tape Smith wore Oct. 27, 2002, in the game he broke Walter Payton's career rushing record. Helmets from the 1996, 1998 and 2000 seasons. Shoulder pads Smith wore the first eight seasons of his career, which included four rushing titles, three Super Bowls and two MVPs (one regular season, one Super Bowl). Used game gloves and cleats. -- Associated Press

Now he's ready to share some of his prized possessions, for a good cause.

Smith is offering for a charity auction about 50 items, including a jersey and helmet worn in the Oct. 27 game when he broke Walter Payton's rushing record. Among more than 30 footballs are his first, 100th and 124th touchdowns, the last which broke Marcus Allen's scoring record, and ball from his first Super Bowl.

"There is a lot of good stuff going in there,'' Smith said. "There are a lot of folks who might want to hold on to something of that nature because of the scarcity of it. Someone else might have more enjoyment out of it instead of me trying to retain all of it.''

The memorabilia will be part of an online sports auction conducted by Chicago-based MastroNet. Bidding begins Nov. 25 and continues through Dec. 13. Among the non-Smith items will be Barry Bonds' 600th home run ball and a bat used by Shoeless Joe Jackson that has an estimated value of $500,000.

All of the money raised from Smith's memorabilia will be given to The Open Doors Foundation, a nonprofit organization Smith created to provide academic assistance for underserved youth.

Doug Allen, MastroNet's president, said it is hard to determine how much money will be raised from Smith's items, but he said the collection is unique because of the significance of the record, the timing, and because Smith is directly involved in the process.

"The offering we have in terms of Emmitt Smith's career, the depth of his career, is pretty significant,'' Allen said Thursday. "It's unprecedented that football memorabilia or any memorabilia had been put aside the way Emmitt meticulously has through the years.

"We sell a lot of stuff from dead guys, vintage older stuff,'' he said.

An ensemble of items from the Oct. 27 game against Seattle is likely to be the most valuable of Smith's memorabilia. There will be a $5,000 starting bid for the set that includes one of four jerseys he wore that game, along with a helmet, cleats, mouthpiece and even the tape that had wrapped his ankles.

There also are game balls from Super Bowl XXVII, the first of the three Super Bowls in which Smith played, and the 1993 regular season finale against the New York Giants that many consider Smith's greatest game.

Smith played through a separated shoulder in that game against the Giants on Jan. 2, 1994. He had 229 total yards and a touchdown on 32 carries and 10 receptions -- the heaviest workload in team history -- in a 16-13 overtime victory that propelled the Cowboys to their second straight Super Bowl title.