The offset side hopper design offered greater capacity than the exterior post hopper, but the sides were more likely to be damaged by overloading and exposure of the structural posts to the acidic coal. Nevertheless, these common cars were a staple on railroads across the United States for 40 years. Some of the P&S and C&I cars could even be found on Conrail trains into the early 1990s. With die-cast bodies, Lionel's cars will be ready to handle your loads for years to come! These heavy and detailed cars will be perfect for any railroad from the 1940s to the 1990s.