Looking through wikipedia (The Source Of All Knowledge) at http://en.wikipedia.org/wiki/Honey, I came across this paragraph:
"Comb honey Honey sold still in the original bees' wax comb. Comb honey was once packaged by installing a wooden framework in special honey supers, but this labor intensive method is being replaced by plastic rings or cartridges. With the new approach, a clear cover is usually fitted onto the cartridge after removal from the hive so customers can see the product. "
I guess this refers to the video below.