along bottom below plate mark in graphite; lower left: O.K.T.P.; lower right: Anish Kapoor 1988.
Acquired by NGA in 1997 directly from Kathan Brown.
- Thirty-five Years at Crown Point Press, National Gallery of Art, Washington, 1997, no. 14*.
- Thirty-five Years at Crown Point Press. Exh. cat. National Gallery of Art, Washington; The Fine Arts Museums of San Francisco, 1997-1998: no. 14*.