"This Was Railroading" by George B. Abdill is a 1958 hardcover book that delves into the history and nostalgia of railroading in the United States. With a focus on transportation and collectibles, the book showcases the rich legacy of American railroads and the impact they had on the country's infrastructure and culture. As a source of materials from the United States, this book serves as a valuable resource for those interested in the history of railroads and trains in the mid-20th century.