Besides our in-house certificates, Iconic Shirts collaborates with a select group of the most reputable COA providers worldwide. We only partner with companies that have a proven track record and strong reputation, such as Exclusive Memorabilia, Allstarsignings, Beckett Authentication Services, PSA/DNA, Wemdoo, Signs of Fame, Sportify Memorabilia, Football Memorabilia UK, and Winning 11 Memorabilia. Each of these organizations has earned recognition through official partnerships, transparent verification systems, and years of experience.
Before adding any item to our collection, we always double-check the origin and supporting evidence ourselves. That means every shirt you see in our shop has already passed through two layers of verification: first by the issuing COA provider, and then by our own team.A COA is more than just a piece of paper. It often includes a hologram, QR code, or serial number that links directly to a database, and many certificates are supported by photographic or video evidence of the signing session. This makes a COA crucial not only for your peace of mind but also for preserving the long-term value and resale potential of your collectible.