Glass mosaic box (pyxis) fragment late 1st century B.C.-early 1st century A.D. Roman Translucent cobalt blue, turquoise blue appearing green, purple, opaque yellow and white.Vertical rim, tapering upward, with recessed band below to receive lid; slightly everted shoulder line; cylindrical side, tapering slightly downward.Marbled mosaic pattern formed from serpentine lengths of canes in different colors with streaks of white and yellow, some overlapping to give different shades and colors.Polished exterior, with pitting of surface bubbles; dulling, pitting, and creamy iridescent weathering on interior, rim, and jagged edges.. Glass mosaic box (pyxis) fragment. Roman. late 1st century B.C.-early 1st century A.D.. Glass; cast and cut. Early Imperial. Glass