The McGraw Electric Railway Directory 1931 is a valuable collectible item that provides a detailed listing of electric railways in the United States during that year. This original/rebound edition serves as a historical reference for transportation enthusiasts and collectors interested in railroadiana and trains. With specific information on various railroads and routes, this directory offers a unique insight into the electric railway industry in the early 20th century, making it a sought-after piece for those passionate about the history of transportation in the United States.