No, my mare was solid colored.  The Paso breeding farm I boarded at had a pinto mare, I do not remember her bloodlines but I think she was a recent cross between Puerto Rican and Columbian lines.  At least that is what the breeder was concentrating on!  This was back in the late 1970's and my memory isn't too good any more!  I think the name of the farm I boarded at was De Haven farm.  I have not thought about it for years but your pictures brought back memories.

My Paso Fino mare was my only venture outside of my favorite breed, Arabians.  My little Paso mare was a LOT more fiery than any Arabian I've known!  I owned her over 20 years.  I still miss her, she was my little girl (I have 2 sons, no daughters.)