This is a Envelope that has been hand signed by Clarence McArthur. This item is approximately 3.5x6.5. This was signed in 1934. It has been certified authentic by PSA/DNA and comes encapsulated in their tamper-proof holder.
This product comes fully certified with a Certificate of Authenticity and tamper-evident hologram and is fully backed by Supersportscenter.com's Authenticity Guarantee.