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Photograph of section of map. "Suveyed in August 1857 by Henry Hancock, U.S. Dep. Surv." Earlier title: "Plan de la ciudad de Los Angeles. Surveyed by E.O.C. Ord, Lt. U.S.A. and Wm. R. Hutton, assistant. August 29th 1849." "Donation lots surveyed by H. Hancock in August and April 1853. Geo Hanson, asst."