Is This Related to the Other Glossy Greys?

As I was researching and writing the blog entries on the early glossy grey Appaloosa color, I went through the pieces in my collection looking for examples in that color. I came across this guy and paused.

My Brahma Bull sure looks like a belly band version of glossy grey Appaloosa that is missing its spots.

According to Nancy Young's book, Breyer Molds and Models 1950 - 1997, the Brahma Bull was first produced in 1955 or 1957 in this color. That predates Breyer's other pieces done in glossy grey Appaloosa and leads me to wonder if Breyer made the decision to use the color in its line of horses and just added spots to make them Appaloosas.

The Family Arabian Stallion was first marketed in the glossy grey Appaloosa color in 1959, several years after the release of the Brahma. The Family Arabian Mare and the Family Arabian Foal followed in 1960. The Proud Arabian Mare was introduced in 1959 in the color as was the In Between Mare. All came AFTER the Brahma.

As far as I can tell, the Brahma Bull was the first piece that Breyer produced in glossy grey. Was his color the inspiration for the glossy grey Appaloosa that first appeared in 1959? I don't have a definitive answer, but I do have a strong suspicion that the two colors are related.