The front of this work in anodized aluminum is recessed 1.25 inches. Similar recessed-front single-unit wall pieces were also made in other colors and materials. These shifts in color in material allowed Donald Judd to, “see what happens to the shape and surface.”¹ Recessing the front of the work “show[s] the thickness of the sheet metal. . . .  [it] emphasizes the edge more clearly.”²

Judd made works with the same configuration and dimensions as this piece in copper, as well as in red and blue anodized aluminum.

¹ “Don Judd: An Interview with John Coplans,” in John Coplans, Don Judd, exh. cat. (Pasadena, CA: Pasadena Art Museum, 1971), 44.

² Ibid.