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 17; envelope: 3rd and Howard Written on envelope: "APRIL 30, 1952, Location: 3rd and Howard. Merc Coupe 4 E 31 55, Dogde Sed. 7 B 90 047."