Cory Doyne Michigan Battle Cats - Astros Affiliate 2002 Multi-Ad Sports Autographed Card - Minor League Card. This item comes with a certificate of authenticity from Autograph-Sports. Autographed. Comes fully certified with a Athletic Promotional Events certificate of authenticity. If a product is unsigned or non game-used, a hologram will not be included Cory Doyne memorabilia. Baltimore Orioles memorabilia