This Autographed 1970-71 Green Mitchell & Ness Swingman Jersey has been Personally Signed by Oscar Robertson of the Milwaukee Bucks. 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. This is a BAS Witnessed Protection Program item which means a Beckett Authentication Service representative was present when this item was being signed. The authenticity can be verified on Beckett Authentication Services website. This is a XX-Large sized, non-branded, custom-stitched Jersey.