How much is this bottle worth

I found this in my back yard I still need to clean it up but I've never seen one before

There are a number of these on eBay right now. Looking at completed auctions, none has sold. One for the recycle bin

https://www.ebay.com/sch/i.html?_from=R40&_nkw=7-up+bottle&_sacat=0&rt=nc&LH_Complete=1