This display case comes with an autographed baseball from Mike Piazza. The display case features a 1/8"-thick clear acrylic removable lid with an antique mahogany finished base. It measures 5 1/4" x 5 1/4" x 6". It is officially licensed and authenticated by Major League Baseball and comes with an individually numbered, tamper-evident hologram from Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. . If a product is unsigned or non game-used, a hologram will not be included. Mike Piazza memorabilia. New York Mets memorabilia.