California Zephyr
The 1953 "Ak-Sar-Ben Zephyr" used both pre-World War II coaches and new equipment manufactured in 1952 for the "California Zephyr". The coaches were part of the pool used for the 1940 iteration, among other trains. The westbound "Ak-Sar-Ben" would use the following cars off the arriving eastbound "California Zephyr":