Klay Thompson, former star guard for the Washington State Cougars, has hand signed this Retro Brand jersey at a private signing. Jersey is new with tags attached and all letters/numbers are sewn-on. This item comes with a certificate of authenticity (COA) from Beckett Authentication Services and was signed in the presence of one of their representatives. You will receive a serial-numbered COA along with a matching serial-numbered sticker on the jersey. The authenticity can be verified online by entering the serial number.Item pictured may not be the exact item you will receive. It will be similar quality, and we guarantee your satisfaction.