The image portion of this card shows an unidentified house labelled "A California Bungalow" on a picture postcard from San Diego Building Co. Ab ad fills the message section, and there is a seal of the Panama-California Exposition mostly in the address section. The last thing in the message section is a printed phrase, "On the Road of a Thousand Wonders." This indicates that the postcard was part of a promotion for the Southern Pacific Railroad between 1890 and 1910. There is a line on a map in the railroads' book The Overland Route to the Road of a Thousand Wonders from 1908 that shows a spur to San Diego. The approximate date is 1910.
