MAS Autograph Authentication COA Lookup

Verify your autographed item’s authenticity by searching your Certificate of Authenticity (COA) serial number below.

Instantly Validate Your COA

Enter the full serial number from your MAS Certified COA to confirm its authenticity. Our database provides real-time verification, ensuring that your autograph is officially authenticated.

Each authenticated autograph comes with a unique Certificate of Authenticity (COA) issued by MAS Certified. Using our COA Lookup tool, collectors, buyers, and sellers can quickly verify the legitimacy of their signed memorabilia. Simply enter the serial number printed on your COA to access authentication details. Protect your investment and ensure your collectible is genuine.