BLUE Coca-Cola Empty Can This can was a trial production by the designer of Coca-Cola company in 1970's. It was obtained from Canadian friend. The can is empty, but there's no hole in the can. International Buyers - Please Note.The item "Super Rare BLUE Coca-Cola Empty Can made in 1970's Trial Production" is in sale since Tuesday, February 26, 2019. This item is in the category "Collectibles\Advertising\Soda\Coca-Cola\Cans". The seller is "norto-0224" and is located in Yokohama. This item can be shipped worldwide.