Awesome lot of 6 premium player game used memorabilia cards from 10 different MLB stars.  All the cards feature game worn jersey swatches except the Mike Piazza card that features a peice of game used bat.  

First card is a very nice 2001 Upper Deck Quad 4 Player authentic memorabilia Jersey card featuring Barry Bonds, Bernie Williams, Brian Giles and Jason Giambi. Certification from Upper Deck on back of the card says that the authentic worn jersey swatches for Giambi, Williams and Giles were pre game warm up jerseys worn by the players at the 2000 All Star Game in Atlanta and the Bonds jersey swatch was a game worn jersey at a MLB game.

Card 2 is a 2001 Fleer The Game Classics Lou Brock card with an authentic game used jersey swatch worn by Brock and displayed in a home plate cut out on the card.  

The next card is a 2002 Upper Deck The MVP Club Reggie Jackson athentic jersey swatch card.  Awesome peice of Reggie history on this great looking card.

Next is Oriole great Eddie Murray Fleer Greats Through the Years game worn jersey swatch from 2001. Nice looking card from #33.

Next is a 2002 Upper Deck Gold Double Game Worn Gems card featur

ing Atlanta Braves pitchers Greg Maddux and Kevin Millwood.  Great double authentic jersey card from the Braves.

Last but not least is the Topps 2002 NY Mets Mike Piazzi official Game Used Bat relic card.  Very cool card from this popular player.

 Awesome list of players and authentic worn/used memorabilia to add to your collection today.