You can view this item on the Beckett website and it shows when and where the item was signed.
Dallas Cowboy Football Cards
Dak Prescott Signed Dallas Cowboys F/S Flash Speed Authentic Helmet-BAW Hologram
Dak Prescott Autographed Cowboys Blaze Full Size Helmet Beckett Hologram
Dallas Cowboys – CollectibleXchange
Jason Witten Autographed Dallas Cowboys Flash Speed Mini Helmet-Beckett W Holo
Official Dallas Cowboys Leighton Vander Esch Collectibles, Leighton Vander Esch Autographed Merchandise, Cowboys Memorabilia
Dak Prescott Autographed Dallas Cowboys 8x10 Back Spotlight Photo-Beck – Super Sports Center
Dak Prescott Dallas Cowboys Signed Riddell Flash Mini Helmet BAS Beckett
Dak Prescott Original Autographed Football NFL Helmets for sale
Dak Prescott Signed Full Size Replica Dallas Cowboys Speed Helmet (Beckett Witness Certified)
NTWRK - Dak Prescott Dallas Cowboys Autographed Mini Speed Helmet - Beck
Dallas Cowboys – CollectibleXchange
This is a Rayne Dakota Dak Prescott hand autographed Salute to Service Nike Limited jersey. You can view this item on the Beckett Authentication
Dak Prescott Signed Cowboys Salute to Service Nike Limited Jersey-Beckett W Holo
Dak Prescott Dallas Cowboys Autographed Riddell Speed Mini Helmet with Deluxe Mini Helmet Case