Stepping aside from your question for a moment, e_r: Strictly speaking that stereoview appears to be from the rooftop aerie of the Elks Club adjacent to Angels Flight.
According to the 1934 CD, Carrie L Payne (wid J W) was living at 520 S Mariposa Avenue. That's the extant Longine Apartments, a 48-unit complex built 1928 - see GSV.