Billy Apple and Colin Greenly

Billy Apple roped off the left-hand section of the gallery beyond the stairwell. He hung tatters of cloth along the string to prevent people from tripping or crossing the boundary. The “rope-off” line formed a trapezoid. The height of the string was determined by the moulding on the wall.”

Colin Greenly’s Intangible Sculpture consisted of landscape photographs in which a straight line element was added.

Excerpted from Brentano, R., & Savitt, M. (1981). 112 Workshop, 112 Greene Street: History, artists & artworks. New York: New York University Press.