RailSmith Models N scale lightweight duplex sleepers: Senior Editor Cody Grivno takes a look at pre-production samples of the new 8-duplex-roomette, 6-roomette, 3-bedroom, 1-compartment lightweight sleeper from RailSmith Models. See cars decorated for Northern Pacific’s 1947 and 1953 North Coast Limited and in Great Northern’s Big Sky Blue scheme. Features on the injection-molded plastic cars include metal wheels, a one-piece interior, and era-specific skirting.