1996 Pictures 4 Atwater Kent Manufacturing Company, Philadelphia Pennsylvania Tweet 1996 North Plant, Detail of Corner Stone, Looking Southwest 1996 North Plant Interior, First Floor General View, Looking Southwest 1996 North Plant Interior, First Floor of Freight Elevator, Looking Southwest 1996 North Plant Interior, First Floor showing Representative Glass Block Windows along Northwest Wall, Looking Northwest 1996 North Plant Interior, Detail of Roof Truss System, Looking West 1996 North Plant Interior, Basement Level, Looking Southeast 1996 North Plant Interior, Basement Level, Looking Northwest 1996 North Plant Interior, Sub-basement Level, Looking West