The item was successfully added to the shopping cart. View Cart #BF169 - Group of 10 Scarce Cork Lined Tru Root Beer Bottle Caps You get 10 for $3.50 (that's 35¢ each). Unused cork lined Tru Root Beer cork lined bottle cap from the Syrup Products Co. in Baltimore, MD and marked as such. Circa 1950. We recently found the only case of these that have ever been found. It is a very rare root beer cap with a great image of a mug on it. They were in dry storage in a sealed box and are in perfect condition. One of the nicest caps you will ever see. $3.50 -+