The product is a rare set of plans for a Soo Line locomotive from the year 1964. These plans offer a unique glimpse into the steam power era of transportation, specifically focusing on railroadiana and trains. Perfect for collectors and enthusiasts of vintage locomotives, this artifact holds historical significance and provides valuable insights into the engineering behind steam-powered locomotives from the mid-20th century. This is an estate find. I am not an expert. Please ask questions. Please check out our other items.