It did notice it looked molded (ribs on the back) and maybe in four segments.
Just didn't realize Prodelin made any dishes with button hook feeds.
Pretty old?
For just this one dish, if ya want to use it for a pond-liner, or a solar cooker, I won't say anything.
Just don't tell me.
Probably use the foil tape they use on air ducts, to seal the holes & between the wedges.
And GO get that motor, somebody!
(without the dish 'n pole, it weighs about 65 lbs)