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.
Folder: S.F. Transportation-Steam Cars. On back: "Market St. Extension Steam Dummy. Ran from Valencia to Castro Sts. About 1885. At Castro St. looking north.". Written on front: "375 Sanchez St.".