Those are Fe-U 50' SS Automobile cars. Within a couple years of this photo, the 500 cars had their left hand doors sealed converting them to single door box cars. When initially converted, the only external differences were removal of the "AUTOMOBILE" lettering, a new car number and class stencil.
ATSF North Bay Lines
Golden Gates & Fast Freights
On Saturday, July 3, 2021, 12:53:16 PM EDT, Bob Chaparro via groups.io <chiefbobbb@...> wrote:
Photo: Santa Fe Boxcars At Hills Brothers Coffee Factory (1938)
Photo from the OpenSFHistory website.
“View west across Embarcadero to bridge, Hills Brothers Coffee Plant with freight cars alongside.”