Is This Old Bottle Worth Anything?

I came across the strangest thing in the yard, an old Mello Yello bottle. So old, that it's a glass bottle.

I joke about the wild, wild west of a backyard I have. Well, it is wooded back there and I've been clearing it out. The other day, a little bit of green glass was exposed. The excavation was on! I thought for sure it would have been a broken bottle. Also, thoughts that it would be a green beer bottle, too. No to both of those hunches. Not broken, not beer. Instead the empty bottle has a Mello Yello cap on top. Maybe from the 80s?

Now, the real question, is it worth anything? Could I walk into "Pawn Stars" and demand big bucks for this original retro flashback? Nah, they would laugh me out of the store. Still, an interesting find. The real question is, should I keep it or pitch it?

After cleaning it up some, here it is: