Coca cola

1920s … Bottling overtakes fountain sales
As the 1920s dawned, more than 1,000 Coca-Cola bottlers were operating in the U.S. Their ideas and zeal fueled steady growth. Six-bottle cartons were a huge hit after their 1923 introduction. A few years later, open-top metal coolers became the forerunners of automated vending machines. By the end of the 1920s, bottle sales of Coca-Cola exceeded fountain sales.

Information taken from http://www.thecoca-colacompany.com/ourcompany/historybottling.html