The Signature Series was a program where an artist would design a model, and then the Stone Co employees painted them. Each model had a stylized sticker of the artists' signature, and came with a Certificate of Ownership.
Spot This is an Appaloosa Palouse designed by Karen Gerhardt. There is a Non-Custom version and a Custom version. The Custom version has a tucked head and modified mane. I believe this run was all glossy. The total run of both custom and non-customs was 250. Per Karen "The base coat color was just a chestnut. Because it's an Appaloosa that would put all kinds of hair color variations in the coat."