A Pair of Coca-Cola Signs

5' x 2' signs that I got a while back. They were mounted side by side. One right side up and the other upside down. No idea why that was!
They were on a building, back from a major road near my home that I would travel on a few times a month. I traveled on that road for at least 10 years before I finally noticed them, stopped and offered to buy!
They were VERY rusty but cleaned off better than if they were NOS (In my opinion.)