This image is an artist’s rendition of a streamlined steam train operating in southern California amidst the orange groves common there in this era.
Genuine Curteich-Chicago “C.T. Art Colortone”
There is no description on the back of this card.
This train strongly resembles the Pioneer Zephyr, a train run on the Burlington Route in the midwest United States, and thus not close to the orange groves of southern California. The badging is different on the front of the train, indicating a different company from the Burlington.
Other postings of this image also conclude that this is not a photograph but instead a mash-up of a train and orange groves, as the Southern Pacific did not have streamliners of this design.
This image likely dates from the 1940s.