Statue made of six separately cast pieces assembled by flow fusion welding (left). The welds appear as a sequence of adjacent ovals corresponding to a welding in basins (right). Captive Gaul, Gaul, last quarter of the 1st century BCE, H. 63 cm (Musée départemental Arles Antique [MDAA], France, inv. Rho.2007.06.1962). See Azéma, Aurélia, Florent Angelini, Benoît Mille, Gaëlle Framezelle, and Daniel Chauveau. 2013. “Ultrasonic Phased Array Contribution to the Knowledge of the Flow Fusion Welding Process Used to Make the Roman Large Bronze Statues.” Welding in the World 57 (4): 477–86..