It's a New Braunfels Bandera...they run about $600 new. I have a an earlier version of one and like it well. NB was purchased some time back and they are a bit thinner now and you will want to gasket the doors for better temp control. If it's in good shape, an offer of $250 would seem like a decent enough deal.
I realize I'm a bit late on this thread, but I came across it while searching for other Bandera owners. In the event that anyone else sees it, I figured I'd throw in my two cents.
I bought one recently and have been restoring/modifying it. I see them pop up on Craigslist from time to time but usually well less than $300. I lucked out and got mine for $75, but have seen one for $200 and one for $120. Given the following that they have, I have to believe it will do a good job when mine is ready, but I don't have any cooking experience on it yet.
One of the Best finds for Me was the New Braunfels Bandera. Made in Texas. Char-broil has bought New Braunfels and now hooked up with Oaklahoma Joe's and have a Bandera. From what I understand, they look similar but No comparison. I wouldn't give up My Bandera for Nothing! Mine is in Very good shape and is All Original! Even the temp gauge is Original. I Highly recommend the Texas made New Braunfels Bandera to Anyone that can find one.