Glass mosaic carinated bowl 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 and yellow, and colorless.Outsplayed rim with slightly pointed edge; carinated side, with two convex curves, the upper being deeply curved, the lower being shallow.Composite mosaic pattern formed from polygonal sections of three canes: one in a purple ground outlined in white, with a central yellow spiral; the second in colorless with a yellow spiral, and the third in blue with a yellow spiral.Polished interior; pitting of surface bubbles on interior; thick iridescent weathering on exterior and edges.. Glass mosaic carinated bowl fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast. Early Imperial. Glass