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Working plan showing approximate grades and drains for the treatment of that section of the District of Columbia situated south of Pennsylvania Avenue and north of B Street South West Washington D.C. /

Working plan showing approximate grades and drains for the treatment o...

Shows proposed development in the Mall and along south side of Pennsylvania Avenue. "Nov. 16, 1900." LC copy fold-lined, laminated, and mounted on cloth backing. Available also through the Library of Congress W... More