Although the San Francisco Overland Limited went from Chicago to Ogden on the Chicago & North Western and Union Pacific railroads, this menu is marked for the Southern Pacific. This suggests that the railroads each switched their own diners into and out of the train at Omaha and Ogden. The New York Public Library has menus with this cover dating as late as 1946, indicating that SP wasn’t very imaginative in its menu designs during the Depression and war years. After 1946, SP switched to UP’s wrap-around color photo menus for the Overland.
The image on this long-lasting cover appears to portray a passenger train pulled by a Southern Pacific MT-1 (4-8-2) or GS-1 (4-8-4) locomotive. SP’s 28 MT-1s were built by Alco in 1923-1924 while its 14 GS-1s were built by Baldwin in 1930. Since I can’t find any evidence of this menu being used before 1935, I suspect it is a GS-1 as railroads liked to show off their latest power. Unlike the locomotive portrayed on this menu, later editions of these wheel classes (MT-2 through MT-5 and GS-2 through GS-6) were all semi-streamlined. The image is signed John something, but the last name is unreadable.