Glass mosaic carinated dish fragment late 1st century B.C.-early 1st century A.D. Roman Rim fragment.Translucent deep purple, light blue partially mixed with opaque yellow and appearing green, opaque white, yellow and brick red.Outsplayed, almost horizontal rim with rounded edge; carinated side, with two convex curves, the upper being deeply curved but narrow.Composite mosaic pattern formed from polygonal sections of three canes: one in a purple ground with an outer white circle and a red circle surrounding a central yellow rod; the second similar but with an outer circle of white dots, and the third in blue with a yellow spiral.Polished interior; pitting of surface bubbles on interior; thick iridescent weathering on exterior, rim, and jagged edges.. Glass mosaic carinated dish fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast. Early Imperial. Glass