"The palomino PAM was long thought to be a hobby myth, and this gal is very probably the model at the root of the stories. She is a test run that dates from around 1970 or 1971. At that time, Breyer had re-acquired the rights to produce the PAM, and as a "new mold" model with a stamp, this mare is thought to have been a test run for the new mold PAMs. They were ultimately released in mahogany, alabaster, and dapple grey, but not palomino.
In 1971, renowned hobbyist, collector, and Breyer consultant Marney Walerius brought this model home from the factory, and it has been in collectors' hands ever since. I am guessing that Breyer opted not to produce the Proud Arabs in palomino because the Family Arabs were already available in that color and had been for some time." Kirsten Wellman.