1857 USCS San Antonio Creek chart with Oakland, Brooklyn, Alameda

Rarest of the USCS San Francisco Bay related charts, this 1857 San Antonio creek sheet has everything. Perfect condition, with evidence of tipping and trim. Content is primary fot he region, with the Oaks of oakland and the Encinal of Alameda , an unaltered Lake Meritt and San Antonio estuary, feeding SF  Bay. Downtown Oakland and building count is well documented for the first time as a dedicated sheet . 14 3/4" x 21 1/4"