Wheel & Axle Manual. Standard and Recommended Practice for such issues by the Association of American Railroads which established such rules for railroads to follow in allowing for safe interchange of freight and passenger cars. Detailed data, both illustrated and through charts. for maintaining safe operations. August 1945. 5" x 7 1/2". 234pp. Shipping with a cardboard reinforced envelope via USPS Media Mail. I will also consolidate orders, if requested, to save on shipping costs.