lower right board in graphite: Dennis Oppenheim 1978
text in image:
Performance Structure for: Inclined. / Hot Coal Walk. Metal Construction / 6 1/2' Wide. 24 1/2' Long. 5 1/2 - 3 1/2 High. 1978. / Interior of Structure / Equipped with Gasoline / Burners.
the artist, New York; Corcoran Gallery of Art, Washington, DC, 1998; acquired 2015 by the National Gallery of Art