One well known Coke collector said that before Coca Cola bought all the producers of the bottles,,they would make bottles for other drinks as well !! The workers would sneak around and make bottles with others glass colors !! The reason it looks 7-Up green is because it was made with 7-Up glass !! He said Coke only made their bottles in Georgia Green which was the approved color for the bottles !! These are considered error bottles with collectors !! There was one on Ebay with a BIN of $8.00 !!