Here′s a WalthersMainline boxcar perfect for 1970s and later HO layouts! In response to a growing shortage of suitable boxcars, railroads big and small began updating and expanding with fleets of larger 50′ American Car & Foundry Exterior Post Plate B Boxcars. Introduced in 1971, these earlier versions of the car featured the popular Dreadnaught end, and would remain in general freight service for years afterward. Layout-ready and built tough, our models feature: One time run of these roadnumbers, order now - limited quantity available! Prototypes seen from coast-to-coast 1971 to the present Handles all types of general freight loading Used by dozens of railroads Dreadnaught ends Stanray diagonal panel roof Correct Plate B dimensions - 41′ 3′ Truck Centers - 15′ 2′ Tall - 10′ 8′ Wide Fully assembled Correct 33′ RP-25 metal wheelsets Proto MAX(TM) metal knuckle couplers