I found these two items at a pawn shop and want opinions whether they are fake or not. My suspicion after looking through these forums is that the picture is NOT authentic, while I'm pretty hopeful about the ball.
Note that ball has no coa, and picture has Ken Goldin one that looks copied
Mantle baseballs in average+ condition trend around $500 or so. You'll see some listed for $800-$1,000, but they rarely fetch that much unless they're in exceptional condition. The pictured ball would sell for around $450-$550 once you connected it with the right buyer.