Not authentic in my opinion. One thing I noticed the b in bill is open at the bottom. Almost every Sig I compared it with is closed. So if belichick is off I'd assume they both are....
The Brady is close but the Belichick is off. He basically prints his signature. Be careful with Patriots signatures, especially Brady. There are a lot of forgeries. An authentic signature will run into the hundreds.
Thank you - it’s not cheap, which is why I don’t want to get tricked. Seller guarantees it’s authentic. Said one of his suppliers had 40 balls signed by different players at training camp.
for what its worth, Brady's training camp signatures are usually just a scribble.