caption: The image shows an old map of the city of San Francisco, California, with a black background. It is a topographic map, showing the various roads, buildings, and other features of the area. The map is labeled "Map No. 1, No. 2, No 3, No 4, No 5, No 6, No 7, No 8, No 9, No 10, No 11, No 12, No 13, No 14, No 15, No 16, No 17, No 18".