Birch’s Views of Philadelphia, 1800
Drainage area plan, early 19th century
Schuylkill River from below the South Street Bridge, 1873
Chestnut Street Bridge, on the Schuylkill River (Picturesque America)
Schuylkill River from below the South Street Bridge, 1873
Plan of Philadelphia, John Hills, 1796
Centre Square Water Works, Drawings of Intake Basin
Centre Square Water Works, Latrobe Plans, 1799
Plan and profile of proposed Delaware Seventh St. Sewer, 1850
Fourth of July, Centre Square, ca. 1812