The highly polished, unpatinated, oval bronze plane contrasts with the darker patinated surface of the rest of the sculpture. Henry Moore (British, 1898–1986), Two Piece Mirror Knife Edge, 1978, H. 47.6 cm (National Gallery of Art, Washington, DC, Adolph Caspar Miller Fund, gift of the Morris and Gwendolyn Cafritz Foundation, inv. 1978.13.1).