Randy Johnson signed (with a game used inscription) Game Used baseball from the clinching game of the 2001 NLCS (The year the Dbacks won it all and Randy was World Series MVP and won the Cy Young). Both autograph and game use are certified by MLB hologram and Steiner. Asking $300 but open to offers.

I also have a Randy Johnson nongame used signed baseball that has a Tristar COA/hologram that is available for $160 or best offer.