American Model Toys - AMT Passenger Cars
In 1948, AMT made sand-cast Pullman passenger cars (examples pictured below). Starting in 1949, they began producing steamlined extruded aluminum passenger cars in both corrugated and smooth roof versions. Included were road names for the Baltimore and Ohio, Chicago and North Western, New York Central, Pennsylvania, Santa Fe, Southern and Texas Special. The cars measure about 14" from end to end. Kusan-Auburn later marketed these passenger cars after they obtained the tooling from AMT.

AMT City of Buffalo, Manhattan Island and City of Toledo sand-cast passenger cars. Image from the American Model Toys chapter of Greenberg's Guide to Kusan Trains.