Kijiji, eBay, and Craigslist dishes for you to take a look at

$40 - mesh BUD - Grandview, MO

7.5' I'd imagine

http://kansascity.craigslist.org/ele/3888944326.html

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Stamped (or spun) perforated aluminum dish.
If it's the 8' model, it's very light & easy to handle.
Well worth rescuing.
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I notice what looks like rust, am thinking steel. Am maybe led astray because similar looking steel dishes are common where I live. I'll try to shoot one close-up someday. If the Oklahoma dish is aluminum the price is right !
 
On these mesh (or perf) dishes are the panels formed to hold a true parabolic shape, or are they facets between the parabolic frame members?