This is a 5x10 Magazine Photo that has been hand signed by Mack Calvin. Calvin signed this twice. This item is guaranteed to pass any third party authentication company including Beckett, PSA/DNA, & JSA authentication.
This is a 5x10 Magazine Photo that has been hand signed by Mack Calvin. Calvin signed this twice. This item is guaranteed to pass any third party authentication company including Beckett, PSA/DNA, & JSA authentication.
This product comes fully certified with a Certificate of Authenticity and tamper-evident hologram and is fully backed by Supersportscenter.com's Authenticity Guarantee.