Annotated X-radiograph of Prajnaparamita and Lokeshvara showing the solid ring-shaped tangs cast with the statuettes to attach the figures to their base (arrows). Khmer Buddhist Triad, late 12th–early 13th century, H. 49.5 cm (National Museum of Cambodia, inv. Ga 2424). See Bourgarit, David, Benoît Mille, Thierry Borel, Pierre Baptiste, and Thierry Zéphir. 2003. “A Millennium of Khmer Bronze Metallurgy.” In Scientific Research in the Field of Asian Art: Proceedings of the First Forbes Symposium at the Freer Gallery of Art, edited by Paul Jett, 103–26. London: Archetype..