This is a highly sought-after baseball card that boasts an autograph from former Seattle Mariners player Jamie Moyer. Part of the 2005 Donruss Diamond Kings set, it is numbered 208 and has received slabbing and authentication from Beckett Grading Services (BGS), with an autograph authentication number of 00016502523. As a vintage card, it is of standard size and made with sturdy card stock material. This officially licensed trading card is a must-have for collectors and fans of the Seattle Mariners and Jamie Moyer. The signature, done in black Sharpie, has been authenticated and encapsulated by Beckett Authentication Services (BAS), with certificate number 00016502523.