Glass mosaic dish fragment late 1st century B.C.-early 1st century A.D. Roman Translucent purple, layered blue and yellow appearing green, opaque pale blue, yellow, and white.Almost flat bottom with rounded edging curving up to almost vertical, shallow side, with outward turn at top.Marbled mosaic pattern formed from sections of a single cane in blue with irregular stripes in white, purple, yellow, and green.Polished interior, with pitting of surface bubbles; dulling and creamy iridescence weathering on exterior and jagged edges.. Glass mosaic dish fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast. Early Imperial. Glass