II c. A.D.
Enameled center raised in two steps. Rounded lobes at all corners incised with dot and circles. In the panel, bronze dividers enclose red enameled semicircles on each edge and a circle at center on green enameled background. Hinged pin has not survived. Originally there were four additional lobes at the center of each side, but they were cut or broken off in ancient times. 53 x 43 mm.
For the same fibula see: R. Hattatt. Iron Age and Roman Brooches. 1985, cat. # 570.