Youngstown, Ohio, Street by Steel Mills, 1970; and Bloomfield Bridge, Pittsburgh, Pennsylvania, 1960 by David Plowden
Statue of Liberty, 1967 by David Plowden
World Trade Center and the Woolworth Building, 1972 by David Plowden
New York City Skyline, 1964 by David Plowden
Lincoln’s bedroom, 1964 by David Plowden
The Tunkhannock Viaduct, Nicholson, Pennsylvania, 1973 by David Plowden
Mayetta, Kansas, 1991 by David Plowden
World Trade Center and the Woolworth Building, 1972 by David Plowden
