Skatalogowana mapa
Map of the northern portion of San Francisco County / compiled from survey's, June 1st, 1852, by Clement Humphreys, County Surveyor.
Instytucja:UCLA Library
Pełny tytuł:Map of the northern portion of San Francisco County / compiled from survey's, June 1st, 1852, by Clement Humphreys, County Surveyor.
Data publikacji:1853
Wydawca:[San Francisco, Calif. : Office of the County Surveyor]
Skala mapy:1:147 520