The Breyer Horse Mustang model introduced in 1961, also known as the Semi-Rearing Mustang, has consistently been in the top ten for popularity. There are so many little details on the models from the early years that make it a treasure hunt when you are looking for a specific variation for your collection.
I have owned a few of the treasures and I've included selected pictures, however, there are many that remain on my “wish list” as well.