disadvantage that not all coupler heads include a flag hole.
In the related art, most railroad couplers used in the United States and Canada are cast with four relief holes, or core holes, in the guard arm side of the coupler head. FIG. 1 shows a typical coupler head 10, used in the United States and Canada with two uppermost core holes 12a-b which are spaced vertically from two lowermost core holes 14a-b formed in the guard arm side. The core hole pairs, 12a-b and 14a-b respectively, are interconnected to provide passages underneath central region 16 and are divided from each other by a rib 18. The core holes 12a-b and 14a-b were not originally designed to serve any function on the finished coupler head 10; rather, they facilitatedThe Messengers centers on a mysterious object that crashes down to Earth and a group of seemingly unconnected strangers die from the energy pulse. They then awaken to learn that they have been deemed responsible for preventing the impending apocalypse.

Black-D'Elia will co-star as Erin, the mother of a young girl who is forced to drive an escaped inmate to Houston. She's described as bubbly despite the stress in her life. She's killed by the pulse but wakes up. The casting brings her back into The CW's fold after her recurring role on Gossip Girl. Her credits also include Betrayal and All My Children. She's repped by ICM Partners, Brookside and CESD.

Courtney, meanwhile, will portray Peter, an Emo outsider who is accused of trying to commit suicide when he