COA-X is a professional sports memorabilia and autograph authentication service.
verify the authenticity of signed items, protective cases, and historic sports collectibles is our mission
About Us
At COA-X, we protect the collecting community by verifying the items that make sports history unique. Our service is built on a deep, lifelong passion for sports memorabilia and years of hands-on experience examining signed pieces, gear, and collectibles. By conducting detailed visual inspections and close analysis of materials and signatures, we help collectors verify their items with confidence. Whether you are buying, selling, or protecting your personal collection, COA-X provides the reliable evaluation you need.
Our Evaluation Process
Our Evaluation Process
We carefully examine every item through detailed visual inspections. We analyze signature dynamics, ink flow, material aging, and specific historical details to verify that the piece matches the correct era and matches authentic exemplars.
Services
Quick Opinion
Fast online review. Send us high-resolution photos of any autograph or item to receive an expert preliminary assessment within 24-48 hours.
Full Authentication
A complete physical inspection of your sports collectibles. Verified items receive an official, registered COA (Certificate of Authenticity).
Full Authentication
Secure online database. Buyers can instantly verify the authenticity of any COA-X certificate by entering its unique alphanumeric code.
Contact Us
Have a question about a sports collectible or need to verify an autograph? Get in touch with our team today. We are here to help you protect your investment.
