What is the best service for signed comics?
Short answer: CGC requires a witness at the time of signing to issue a yellow label; otherwise the autograph is considered qualified and treated as a flaw.
Depends
CGC requires a witness at the time of signing to issue a yellow label; otherwise the autograph is considered qualified and treated as a flaw. CBCS offers a Verified Signature Program that can authenticate autographs after the fact, making it ideal for older signed books. PGX can authenticate signatures but lacks the same level of market trust.
Last updated: September 21, 2025