These vintage keys and tag are used. They went to the padlock on the door to the room were Coca-Cola pre- mix materials were kept. Pre- mix is the Coca-Cola that is dispensed out of five gallon metal tanks of a Coca-Cola fountain. The local bottling plant were these keys were used is no longer in operation and has been closed for over twenty years. These keys are great for any Coca-Cola enthusiast or collector or vintage key collector. The keys are vintage Master Lock keys with the lion image on them. The key numbers are J307. I offer speedy shipping and combined shipping with the purchase of more than one item. Please check out my eBay store for more great Coca-Cola collectibles.