Birch’s Views of Philadelphia, 1800
Drainage area plan, early 19th century
Sometimes the backside is the best side
Ground Plan, Great Central Sanitary Fair, Philadelphia
Plan and profile of proposed Delaware Seventh St. Sewer, 1850
Fourth of July, Centre Square, ca. 1812
Second Bank of Pennsylvania, South Second Street, Philadelphia
Wooden Water Pipe, removed from Market Street, December 6, 1901
Centre Square Engine House, ca. 1807
Delaware River at Arch Street from the New Jersey side, 1914