This Autographed Blue Mitchell & Ness 1998-2019 Hall of Fame Class of 2023 Throwback Hardwood Classics Swingman Jersey has been Personally Signed by Dirk Nowitzki of the Dallas Mavericks. This item is 100% Authentic to include a hologram by Beckett Authentication Services. This item will come with an affixed Beckett Authentication Services (BAS) authentication sticker, which includes a scannable QR code to verify authenticity. Please note that Beckett no longer provides serial-numbered COA cards, and the attached BAS sticker will serve as the complete authentication for this item. We conducted an autograph signing with Dirk Nowitzki where multiples of the same item were signed. While the photographs are representative of this item, the size, placement and strength of the signature may vary. Each item is hand signed, therefore, each autograph is unique. This item can be verified through BAS. This is a X-Large sized Jersey.