Up for sale is a rare Coca-Cola aluminum bottle with a unique Diet Coke design. This collectible item features the iconic Coca-Cola brand and a soda theme. It is perfect for collectors of bottles, Coca-Cola, soda, advertising, and other collectibles. The bottle is in excellent condition and is a prototype design that is highly sought after. Don't miss out on the opportunity to add this rare piece to your collection. This is  a designing prototype used in the designing of a new Diet coke bottle, to my knowledge never put into production Rare 250ml.