It is a just a bottle of cola, nothing is special isnt it ? but ....look closely ..
This is a very rare Coke poster that was an ad published in South Australia in the 1980s. At least, this is what a guy who sells it on eBay says. The artist who drew this, hid the picture in the Coke advertisement, and the ad went into the market unnoticed. Of course, when the drawing was finally noticed, all posters were at once recalled and the artist was fired and sued.