Kiki Smith's *This work is unique.* is a sculptural work cast in phosphorous bronze, painted and combined with glass and tin to create a richly textured, materially complex object. Smith's characteristic merging of the corporeal and the spiritual is echoed in the interplay between the warm metallic surface and the luminous quality of the glass elements. The work's self-referential title draws attention to its singular existence as an object, inviting reflection on authenticity, identity, and the nature of making.