With their structural bracing exposed on the outside, single-sheathed boxcars provided a flat interior wall for securing the loads. Common from the 1910s into the steam/diesel transition era, these cars offer a distinctive variation in your boxcar fleet. Lionel's new cars feature realistic molded in details for added durability and lower costs making it easy to round out a freight train suitable for your steam and diesel locomotives. Two numbers are available for each road name Die cast trucks and operating couplers Opening side doors PRODUCT SPECIFICATIONS Rail Line: Boston & Maine Road Number: 70820 Gauge: O Gauge Min Curve: O31 Dimensions: Length: 11 1/2" Most Recent Catalog: 2023 Volume II Catalog