Under the name of West, Southern Pacific once published a series of monthly brochures whose covers looked like magazines, but each was just four pages long. All of the issues I have or have seen are from 1940 through 1942; the railroad probably stopped publishing it due to wartime restrictions.
This particular issue announces a new “economy” train on the Shasta Route called the Beaver. Inaugurated on June 8, 1940, the train included coaches and tourist sleepers and featured breakfasts for 25 cents, lunches for 30 cents, and dinners for 35 cents. The train was mostly heavyweight but included two streamlined chair cars (railroad parlance for long-distance coaches) that had stainless-steel fluted side panels but appear to have been painted Pullman green to match the rest of the train.