Mike, I don't like the signatures. The ball Stephen signed for me has more uniform letter spacing and definition. Stephen makes a short but discernible upstroke with his "h" that I don't see on your picture. Granted, ball point on a baseball and sharpie on a helmet should look different. I have seen a few dual signed items pop up on online auctions of these two in the past few months. All I have seen were authenticated by ACE. You might try getting your money back or doing a chargeback on your credit card if it hasn't been too long.