The Benefits of GCOA
Convenience and speed
Authentication is done online, without the need to send in the original. You’ll receive expert results in a short time.
Reduced cost and increased item value
The absence of shipping and the lower authentication cost significantly reduce the overhead on the item, making it a more affordable and attractive commodity.
Reliability
Our technology is based on years of research and verification with the world’s leaders in autograph authentication.
Affordable pricing
High-quality services at competitive prices.