Founded in Pennsylvania in 1857, the Bethlehem Steel Corporation grew to become the second largest steel producer in the United States and one of the largest shipbuilding companies in the world. It was also a major supplier of components for the nation's railroads. this catalog, which dates from the 1950's, shows mine and industrial trackwork, including railway switches and stands. it contains tables and diagrams to assist customers in ordering special frogs, turnouts, tie sets, crossings, and mine safety apparatus. This book is a useful reference for the railroad enthusiast, model railroader, and museum docent.