Upper 10 was RCs answer to 7up. It is a common bottle worth only a buck or two. If you like it keep it, if not scrap it. I personally think it is a nice looking acl.
if it's not the type you collect maybe you could trade it towards something you do collect. they're not making them anymore so sooner or later the value will increase.
That ACL has two things going for it-it is a 7 ounce, not a common size (I see mostly 10 ounce) and it has a City/State listed on it. Usually a City/State listing will increase the value some. The real common ones just have something like 'Property of Nehi', no reference to a City/State at all.