AT&SF 2-10-2 3813 is in charge of a 79 car freight at La Junta Colorado in 1932. Otto's speed estimate was 15 MPH. Otto Conrad Perry photo, from my collection.
AT&SF 4-8-4 3780 emits an impressive smoke plume as it leads second number 3, The California Limited, at 40 MPH south of Bernalillo New Mexico in 1947. Otto Conrad Perry photo, from my collection.