This Autographed Griswold Hockey Jersey with the inscription of "Beat me off - Clark Griswold" has been Personally Signed by Chevy Chase of National Lampoon's Christmas Vacation. This item is 100% Authentic to include a hologram by Beckett Authentication Services. This item may come with the new Beckett Authentication hologram that has a scannable QR code rather than the traditional COA. If you would like to have a COA, you are welcome to reach out to Beckett for a printed certification once you receive your 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 X-Large sized, non-branded, custom-stitched Jersey.