Built for Chesapeake & Ohio in the early 1970's, these three bay hoppers were converted by CSX to Coalporter gondolas in the 1990's for rotary car dumping, and then completely rebodied by the CSX Raceland Shops back to 3-bay conventional gravity dump hoppers in 2007. Car roadnumbers in this pack include CSX 834173, 834615, 935598, 836146, 836560, 837537, 837481, & 838909.