Paperback Edition. Purpose-built freight cars for coil steel transport. Integral trough body designs. North American operators. Data and reference guide - no photos. Covers over 19,000 cars currently operating. Longitudinal and transverse trough types. Car series accounts listed alphanumerically. Bibliography. Contents: Using this Book, Series Accounts, UP 210000-210399 Series, Individual Car Listing, Roster Problematica, Additional References.