Balboa Scale Models Fourth Edition By n/a Books / Paperback Transportation › Railroads Publisher: Balboa Scale Models, January 1968 Price $25.04 Free Shipping Send to a friend Used - Very Good Very Good condition. 4th edition. (model trains, hobbies) $25.04 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.