Lionel 6-17737 O Norfolk & Western Round-Roof Boxcar #46494 ProductID_11462294 Chuff sound intensity varies with

Chuff sound intensity varies with load

The Trainz SKU for this item is P11538789

Each car measures approximately 12

The Trainz SKU for this item is P12175593

Lionel 6-17737 O Norfolk & Western Round-Roof Boxcar #46494 ProductID_11462294 Chuff sound intensity varies withLionel 6 17737 O Norfolk & Western Round Roof Boxcar #46494. In the early 1930s, Pennsylvania developed a new round roof style of boxcar that allowed for a taller 10 inner height and increased overall loading volume. The largest number of them were class X31A boxcars, identified most clearly by a distinctive non flush inset where the car sides met the rounded roof. By 1937, the efficient round roof design of PRR was adopted by the ARA and used on