1. The top bar to which an inch strip, cut from a brood comb with eggs, has been waxed.
2. The original comb. Some of the cells have capped pupae which were probably larvae when the strip was cut .
3. New comb which is being built down from the inch strip of original comb.
4. A queen cell ready to be cut out and put in a mating nuc or be affixed to a bar with cages to confine emerging virgin queens. Often six or more queen cells can be gotten from one bar.