This large Size Coca Cola vending machine is an advertisement created by Ogilvy Argentina Agency to celebrate Argentinian friendship day. I translated the text from the ad using the Google translator and this is what it said: The Machine of Friendship. On the day of the friend we invite friends to celebrate with a 2x1 Coca Cola. To do this we placed a Coca Cola vending machine with a higher than common coin slot, so that the only way to reach the button is with the help of a friend.
Turns out, that if you and your friend(s) can figure out how to get up high enough to place your coins into the machine, you will be rewarded with an extra bottle for free... for your friend of course!