{"product_id":"seattle-mariners-ken-griffey-jr-autographed-official-al-baseball-upper-deck-uda-certified","title":"Seattle Mariners Ken Griffey Jr. Autographed Official AL Baseball - Upper Deck UDA Certified","description":"\u003carticle class=\"product-description\"\u003e\n\u003csection class=\"product-description__story\"\u003e\n\u003ch2\u003eThe Gold Standard: Ken Griffey Jr. Signed Seattle Mariners Baseball (UDA)\u003c\/h2\u003e\n\u003cp\u003eAcquire a premier modern sports pop culture milestone with this official American League baseball, hand-signed by the legendary \"The Kid\" himself, Ken Griffey Jr. This premium collectible showcases a beautiful, sharp signature across the leather sweet spot, serving as an exceptional display asset. Backed by the most prestigious name in modern autograph security, it represents an investment-grade cornerstone piece for advanced portfolios.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-description__auth-details\"\u003e\n\u003ch2\u003ePremium Upper Deck Authenticated (UDA) Holo Validation\u003c\/h2\u003e\n\u003cp\u003eTo preserve the elite market value and uncompromised legitimacy of this sports asset, this signature is backed by the industry-leading \u003cstrong\u003eUpper Deck Authenticated (UDA) Tamper-Proof Hologram\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication Firm:\u003c\/strong\u003e Upper Deck Authenticated (UDA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAthlete:\u003c\/strong\u003e Ken Griffey Jr. (Hall of Fame)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeam Franchise:\u003c\/strong\u003e Seattle Mariners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Hand-Signed Official American League (AL) Baseball\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication Type:\u003c\/strong\u003e Serial-Numbered Tamper-Proof UDA Security Hologram\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-description__verification\"\u003e\n\u003cdetails class=\"auth-verify\"\u003e\n\u003csummary class=\"auth-verify__summary\"\u003e\u003cspan class=\"auth-verify__chevron\" aria-hidden=\"true\"\u003e▸\u003c\/span\u003e \u003cspan class=\"auth-verify__title\"\u003eHow to Verify Your Ken Griffey Jr. UDA Registry Ledger\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"auth-verify__body\"\u003e\n\u003col class=\"auth-verify__steps\"\u003e\n\u003cli\u003eVisit the official Upper Deck Authenticity registry database online.\u003c\/li\u003e\n\u003cli\u003eInput the unique alphanumeric serial tracking code printed on the tamper-evident UDA hologram sticker.\u003c\/li\u003e\n\u003cli\u003eInstantly confirm the matching player record and verified signing database status.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"auth-verify__footer\"\u003eFor inquiries or shipping details, reach out to us at \u003ca href=\"mailto:orders@gamedaysportsmemorabilia.com\"\u003eorders@gamedaysportsmemorabilia.com\u003c\/a\u003e. Covered by our \u003cstrong\u003eLifetime Authenticity Guarantee\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003c\/article\u003e","brand":"Gameday Sports Memorabilia","offers":[{"title":"Default Title","offer_id":54179437674795,"sku":"266726","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/6124\/5995\/files\/OK_7_17_26_1255__03273.jpg?v=1784484031","url":"https:\/\/gamedaysportsmemorabilia.com\/products\/seattle-mariners-ken-griffey-jr-autographed-official-al-baseball-upper-deck-uda-certified","provider":"Gameday Sports \u0026 Memorabilia","version":"1.0","type":"link"}