Glass mosaic carinated bowl fragment late 1st century B.C.-early 1st century A.D. Roman Rim fragment.Translucent deep purple, opaque white, yellow, and brick red, and colorless.Outsplayed, almost horizontal rim with tapering edge; carinated side, with one deep convex curve.Composite mosaic pattern formed from polygonal sections of two canes: one in a purple ground with a circle of white dots and a central red rod; the second with a yellow spiral in a colorless ground.Polished interior; pitting and creamy weathering of surface bubbles on interior; dulling, weathering, and some iridescence on exterior, edge of rim, and jagged edges.. Glass mosaic carinated bowl fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast. Early Imperial. Glass