Black porous-tip pen on three sheets of paper
Each Sheet: 23 1/2 x 17 7/8 in. (59.7 x 45.4 cm)
Right sheet signed and inscribed at lower right in black porous-tip pen: "WELLING / JUNE 18,1970"; left sheet inscribed at lower right: "June 18, 1970 / NORTH TOWER 74 / SOUTH TOWER 26"; at the lower left in graphite: "13"; verso of right sheet inscribed at lower left in black porous-tip pen: "20. MANHATTAN SKYLINE"
Architecture, a triptych in a series of drawings showing the World Trade Centers under contruction from 1969-72.
Due to ongoing research, information about this object is subject to change.