My suggestion would be to put them up for sale on eBay. You will get the largest amount of attention from people who collect coolers, Pearl Breweriana, and people who collect vintage in general.
Great for BBQ's in that Texas heat -gotta put the beverages in something....one for sodas, one for brew.
Those are cool, I'm sure you will get a good dollar for them. Allways been on the hunt for one, for my old truck but when they come up for sale local they allways have a huge asking price. I honestly wouldn't mnd paying a couple hun for one but it would have to be a green Sprite or 7UP as my truck is green
I remember in the 80's finding an antique red and white Coke cooler with wire handles in lower Michigan in the woods. Like a fool I gave it to some lady friends we were camping with. Used to see old coolers at farm sales in Illinois and occasionally yard sales in Florida. But now most are filled with gold, it seems!