(Pete) There are four models of Guardala: Artist, Pro Custom, New York Series, and Earth Tone. That's also in order of greatness: the Earth Tone Series is the top model. Way more info on Helen's breakdown page.
Also check out Helen's new blog post about the Asian-made Dave Guardala horns.
You might notice that I'm posting a few horns in here that are actively for sale.
I'm doing that for a few folks that have been long-time contributors here.
The standard disclaimer applies: they're not my horns, I don't claim they're good or they're in perfect shape, etc.
If you want to list your horn, e-mail me at thesaxinfo-at-gmail.com and we might be able to work something out.