Atlantic and Western Rolling Stock Photographic Roster
Reporting Marks: ATW
AAR Class:
HM: Open top self-clearing car, having fixed sides and ends and bottom consisting of two divided hoppers with doors hinged crosswise of car and dumping between rails.
AAR Type:
H340
Detail Info:
Unequipped Hopper, Load Limit: 185,000 and greater, Non-rotary couplers
