Appraisal of Structural Properties of the Spring Valley Water Company City Distributing Pipe System Subsoil Map Prepared by M.M. O’Shaughnessy City Engineer December 1913
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1913 O’Shaughnessy Spring Valley Water subsoil pipe map of San Francisco
Large map of San Francisco with subsoil types designated by the use of hatched, dotted, or solid lines of varying thickness. Documentation of the ongoing quest to provide potable water to the populations of San Francisco.
Prepared by San Francisco’s most powerful surveyor, M. M. O’Shaugnessy.
Verso Text: Blank
Light foxing near the left edge, some minor darkening; very good.
No copies are listed in OCLC/WorldCat.