![Mismatched high- and low-level equipment on a passenger train](https://www.trains.com/wp-content/uploads/2021/06/20210629.jpg)
Mixed train
Internal stairways on some of the Sant Fe’s Hi-Level cars enable them to operate with single-level equipment. Here, a Hi-Level is mated with a sleeping car when the all-Pullman Super Chief and all-coach El Capitan were running as a combined train. Wallace W. Abbey photo