Actually, it seems that is a REAL Weber. Maybe made for just two years. We have the 1986 catalog listing a very similar body but with a gas kettle.
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We don't have the next year 1987 catalog, so this is just guess work. I am thinking they dropped the gas kettle and for 1987 substituted a charcoal kettle as he listed for sale here. (It has been sold to some lucky buyer.) Anyway, after that this model disappears as the 1988 catalog has only several wood carts for kettle grills and no gas kettles.