The Disneyland Stagecoach is a fairly well-known icon of the 1950's. But in the early days they had two coaches, the other being the brightly painted Yellowstone Coach. I never knew what it was called until finding a very early souvenir slide that named it. And if you do a Google Image Search for "Yellowstone Coach", sure enough...you will see photos of coaches that look just like the Disneyland version.
Wonder why they were so short-lived? It doesn't look like they would have suffered from the problem of being top-heavy (supposedly an issue with the Stage Coach). I like the fact that it was pulled by mules!
There is a very scarce Disneyland postcard, an artist's panoramic view of the Frontierland/Mine Train area. There in the lower left is the good old Yellowstone Coach.