Coca Cola Special Edition Bottles - are the high point of any bottle collection. The newest Aluminum Coke bottles are classic contour shape with modern images and designs. Gold, Silver, and Red bottles are made from an actual 8 oz glass contour bottle finished in mirror smooth with plating or glazing. Crystal bottles are made from solid 24% lead crystal. Coke bottles are considered "rare" when they are not publicly available, corporate bottles with limited availability to a small group or come in a limited edition tube, box or with a tag. Add to your bottle collection with these rare soft drink editions.