When we got home from Phoenix, we worked like gangbusters for about 2-3 months. The previous owner told us that the trailer was a '53 Westerner. I'm sure that's what he was told, too. It does look like one.
When I stripped the paint off the outside of the trailer, I found a faint outline of a reclining cowboy and the word "Siesta." We figured out that the original emblem must have looked like this:
You can barely see the outline, but it definitely says Siesta!