A photo of pintura fresca on Stockton Street has been taken by Walter Mackins. The photo is available from Mission Local, a source of neighborhood and civic news in San Francisco.

Further details about the photo and the pintura fresca can be found through Mission Local. The source provides information on local news and events in the San Francisco area.

For more information on the photo and the story behind it, readers can refer to the original source, Mission Local, which covers news and events in San Francisco's neighborhoods and civic community.