1887-1968 18thcentury 19thcentury 20esiècle 20thcentury american art artaméricain artmuseumarchitecture buildings catalogs civilization criticismandinterpretationduchamp decorationandornament decorativearts delft delftware drawing duchamp etc exhibitions expositions états-unis federalstyle history italian marcel modern modernism(art) modernisme(art) neoclassicism netherlands pennsylvania pennsylvanie philadelphia philadelphie structures textilefabrics unitedstates urbanbeautification