This listing is for a signed Yellow Hall of Fame Plaque Postcard from Baseball Hall of Famer KEN GRIFFEY JR. Nice signature on the front of the postcard. THIS PLAQUE IS A FIRST PRINT FROM JULY 2016, rare to find signed. You can see the date on the back. You KNOW this one is real. This signature has been certified by PSA/DNA, the premier autograph authentication company in the world. Their authentication is accepted and used by all the major auction houses. It has been slabbed in one of their popular holders.