That picture is a joke, but it looks like an old Bar-b-Q Kettle, probably pre- 1979, most likely older. Here is the Weber date code breakdown...
It will cook just fine but I suspect that the price is inflated some because of the age. I see Weber kettles around here for under $50 all of the time. If you're not in a hurry, look for a 22.5" One Touch Gold in good shape. You can probably get one for $75 or less if you are patient. The ash catcher on the OTG is worth the extra money.
"Ron Rico, Boss. You can call me Captain Ron..."
The Naked Fatty!
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