This Autographed Blue Pro Style Jersey has been Personally Signed by Kon Knueppel of the Duke Blue Devils. This item is 100% Authentic to include a hologram sticker by JSA. This will be the complete authentication for this item, and will not come with a matching numbered COA. The authenticity can be verified on JSA website. This item has been professionally framed to overall dimensions of approximately 32 x 37 inches. This is a X-Large sized Jersey.