Identity Stretch. 1970-1975 .Hot sprayed tar. 300’ X 1000’. Artpark, Lewiston, New York.

Left print: Right Thumb. Erik Oppenheim. Right print: Right  Thumb. Dennis Oppenheim. "Preliminary procedure: Thumb prints made on elastic  material, pulled to maximum, then photographed. Lewiston site surveyed for grid installation, using white mason’s line. Spray truck worked within grid, following approximate course made up of enlarged papillary ridges of elongated and partially overlapping thumb prints."