Though not required of public domain images, if you want to credit the library as the source, please use the following statement: "From the San Francisco History Center, San Francisco Public Library" and provide a link back to the item on our Digital Collections site.
San Francisco Police Department Records (SFH 61. Photographs Bureau. Bureau of Accident Prevention. Box 7; envelope: Cortland & Andover Written on envelope: "April 5th, 1941. Location: Cortland & Andover Sts. Helgesen, N. 125 25th Ave. Scene."