MLB authentication program, 05/14/2014
Official Washington Nationals Website
MLB Authentication, Hologram Authenticator
MLB Authentication Program connects fans to game-used memorabilia - Sports Collectors Digest
Los Angeles Dodgers vs. Diamondbacks Game Used Baseball 04/14/2010 MLB Holo
Mets Amazin' Memorabilia
Los Angeles Dodgers vs. Diamondbacks Game Used Baseball 04/14/2010 MLB Holo
2019 Alex Bregman Players Weekend Topps Now Game Worn A-breg Jersey Card #pw-69c
Collecting Game-used: No MLB Authentication? No problem II / Blowout Buzz