Droste

This particular phenomenon, known as the “Droste effect,” is named after a 1904 package of Droste brand cocoa. The mathematical interest in these packaging illustrations is their implied infinity. If the resolution of the printing process—(and the determination and eyesight of the illustrator)—were not limiting factors, it would go on forever. A package within a package within a package... Like Russian dolls. (Full Blog Entry)

I thought it was neat anyway. A little extra knowledge to keep packed away and used at your next cocktail party.