How much would a signed Terry Pendleton ball be worth?

Answer 1

around $100

Update:

An Terry Pendleton single signed Baseball is worth approximately $68 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.