One of the most popular post-war lightweight sleeping cars was the 10 roomette 6 double bedroom Pullman-Standard design built as Plan 4167. This configuration, with the bedrooms in the center and the roomettes split into groups of five at each end was built in both partially fluted and smoothside versions. The largest order (75 cars) was placed by the C&O, but 19 of these were delivered to other roads (DRGW, B&O, IC). The IC and NKP also placed orders for cars of this plan on their own behalf. The C&O sold additional cars from their remaining lot to IC, ACL, and B&O. Various cars were later purchased by Amtrak, NdeM, and individuals.