2008 Game Used dirt in NY Yankee logo set of 4 coasters Bronx Map (MLB Authenticated)

2008 Game Used dirt in NY Yankee logo set of 4 coasters Bronx Map (MLB Authenticated) 2008 Game Used dirt in NY Yankee logo set of 4 coasters Bronx Map. MLB Authentication- This items come with the MLB Authentication hologram. The Major League Baseball Authentication Program has set the standard for sports memorabilia authentication. Major League Baseball is the first and only professional sports league to implement a program that easily distinguishes authenticated autographs and game-used memorabilia from other items on the market. This program - which combines the services of a third-party authenticator with a state-of-the-art hologram, a serial numbering system and an online verification process - guarantees the authenticity of its autographed and game-used items. Autographed and game-used items in the MLB Authentication Program are currently authenticated by individuals specifically trained to authenticate autograph signings and the removal of items that they personally witness as used in game. Items and their unique identification numbers are processed and posted on MLB.com, the program's official site, for easy reference by consumers. Once witnessed, every authenticated item is affixed with a tamper-proof hologram created by OpSec, U.S. to identify its authenticity. To look up your item simply go to http://mlb.mlb.com/mlb/authentication/ to verify your item.