Data/reference only. No photos. TEIX is one of the reporting marks of Transportation Equipment Incorporated. As with the author's previous book on SRIX, the TEIX fleet is a veritable feast of "old steel" drawing freight cars from many different previous operators. This book lists 2,096 cars using the TEIX reporting marks currently on line as of February 2012. Each car shows its immediate previous car identity (if applicable), followed by the equipment type code, year built, and builder.