I just read this. I thought I'd let everyone know that I wrote Stetson back in the early 1980s and they replied with a letter stating Don wears the Stetson Stampede in the acorn color. He occasionally went to the factory and they said before he left, his new hat looked as battered as the one he came in with.I was just looking at some photos of Don Williams and for the first time, looked closely at his hat. I had always thought it to be a western with a short brim, alas I was wrong. It appears to me to be a dress hat of sorts with the brim rolled up western and a military acorn cord over the ribbon. There are so many styles rolled into one. I am not sure if he has been holding it by the crown, or if it was just pounced to this point with 9 million grit micron paper.