Glass mosaic bowl fragment late 1st century B.C.-early 1st century A.D. Roman Rim fragment.Semi-opaque blue green appearing greyish green, dark purple appearing black, opaque white, yellow, and red.Outsplayed horizontal rim, with rounded edge; convex curving side slanting downward.Mosaic pattern formed from polygonal sections of a single cane in a blue green ground with a black circle containing a ring of yellow rods and a central white rod surrounded by a red circle.Polished interior; pitting and weathering of surface bubbles on interior; dulling and creamy brown weathering on exterior, edge of rim, and part of one jagged edge; other edges unweathered.. Glass mosaic bowl fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast. Early Imperial. Glass