This was a frame drawn out between two drawn frames. I was hoping to use it for cut comb, but the queen got to it first and filled it with drone brood. Also a queen cage that I made for transferring a queen from a nuc to a hive. They chewed under the rim pretty quick and released the queen. an intresting detail visible on the backlit comb is that the cells on the back side are offset instead of lined up, making the comb more rigid.