CJ Henderson Signed Autographed Florida Gators White Riddell Speed Mini Helmet. This licensed Mini Helmet has been signed by CJ Henderson. The autograph has been certified authentic by JSA and comes with their authentication sticker and matching certificate of authenticity that can be verified online. JSA is the leading third-party authenticator in the autograph industry. This signed Mini Helmet is a great gift idea for any Florida Gators fan or memorabilia collector. Commemorate the great career of CJ Henderson with this Mini Helmet and check out other memorabilia at Prime One Sports.com.