Vintage Coca Cola vending machine

Hi
I'm looking for any information that anyone would know about this vintage Coca Cola vending/cooler. Pictures are not the best however you lift the lid and the bottles sit inside to be cooled. There is an oval metal tag on the back that has the number 690 on it. Not sure if this is a model number or not. Theres also a square metal tag that has Cavalier and made in Chattahooga TN on it. It has been in my mother in laws garage for many many years. We are interested in knowing what the model is, should we attempt to get it restored or leave it as is. Any information would be great.
Thanks
John