Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the signature. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions.
how much is a signed milt pappas no hit baseball worth
An Stephen Drew single signed baseball is worth approximately $44 if it is on a Rawlings Official Major League baseball and is signed on the "sweet spot". These values assume that they are all authenticator by a reputable company. An autograph that isn't properly authenticated can be worth as little as half of the value of an authenticated signature. For more prices on single signed autographs see Related Links below.
15
not much
A baseball signed by Andre on Amazon, is $137.99
How much is a ray tanner baseball
a lot
$5.
Nothing....
To me $2
How much a signed Rich Harden baseball is worth depends on the condition of the ball. Its value is generally between 35 and 155 US dollars.
Nothing