Plan and profile of proposed Delaware Seventh St. Sewer, 1850
Second Bank of Pennsylvania, South Second Street, Philadelphia
Wooden Water Pipe, removed from Market Street, December 6, 1901
Delaware River at Arch Street from the New Jersey side, 1914
Drawing Dock Creek (2008)
Hudson’s Square – A Place Through Time, Archeological Data Recovery on Block 2 of Independence Mall
Preparation for War to Defend Commerce
The Water Works in Centre Square, Philadelphia
Bank of Pennsylvania, South Second Street, Philadelphia
Pennsylvania Hospital in Pine Street