Folder: S.F. Transportation-Streetcars-Lines-United Railroads.
On back: "This looks like a cable car but was one of the early electric cars used on Mission Street in the nineties and put into operation on the McAllister line after conversion in 1907. Scene here was taken at the McAllister yeard [sic]."
On back: "Transportat: Streetcars 1948 old pix".