Certificate of Authenticity

[khackdrums]

It's crazy if they are worthless, I've seen people on Ebay posting for the likes of Avril Lavigne and they charge AT LEAST £50 for a signed photo with a COA, that's the equivalent of roughly $80.

That's because all they are probably doing is trying to sell you a guaranteed POS!

Khackdrums

[smackedsillyxxx]

home made coas are worthless, but you can get them officially authenticated by a company. They put their official sticker on it
and have professional coas. which are not worthless. Most popular sites are psa/dna and global authentication

[packrat]

Even the authenication services make mistakes. Happens all the time. As long as the autograph looks close enough to the known real thing, it could very well pass. Even PSA/DNA. On the other side of the coin, I've heard about people who have gotten someone IP and had the authentication fail. Go figure...