I have some breyer horses I recently purchased at an estate sale. For now I need to identify three horses of which two are numbered( I assume limited runs?), and two are hand signed by peter stone.  The paint is numbered 4524/5000 and hand signed peter stone. The grey (black mane and tail) is numbered 0119/1500. The roan? (red mane and tail) is hand signed peter stone and dated 9-30-89.  Any help Identifying and or pricing will be much appreciated.