Certainly not all of them. It seems like a Jimmy pipe has to smoke so well that one really hammers it. I've bought a couple over the years that seemed like they were someones Jimmy pipe. I don't think I've ever worked one single pipe quite that hard myself.
I bought this short Bulldog in hard used condition. It's marked 1909. The rim was uneven and burnt. I was going to leave it, but cleaned it up in the end. The proportion is a little short, but it still smokes well.
