Search

Search Constraints

Start Over You searched for: Repository The Historical and Interpretive Collections of The Franklin Institute Remove constraint Repository: The Historical and Interpretive Collections of The Franklin Institute Year 1650 to 1699 Remove constraint Year: <span class="from" data-blrl-begin="1650">1650</span> to <span class="to" data-blrl-end="1699">1699</span>

Search Results

Main content

Frederick Graff maps, technical drawings, and plans on Philadelphia (Pa.) water engineering projects, circa 1683-1875

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]