Glass mosaic fragment late 1st century B.C.-early 1st century A.D. Roman Thin-walled body fragment of shallow dish or bowl.Translucent purple, blue mixed with yellow appearing green, opaque yellow, white, and red.Mosaic pattern formed from sections of two canes: one in a purple ground with a white circle and central yellow dot; the other with concentric rows of green rods outlined in yellow surrounding a central red dot.Polished exterior; pitting of surface bubbles on exterior; dulling and creamy weathering on interior and jagged edges.. Glass mosaic fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass. Early Imperial. Glass