Glass mosaic bowl. Culture: Greek or Roman. Dimensions: diameter 4 11/16in. (11.9cm). Date: 2nd-1st century B.C..Colorless, translucent cobalt blue, opaque yellow, and opaque white.Outsplayed horizontal rim with rounded edge; S-shaped side tapering downwards to slightly convex bottom within applied outsplayed base ring with thick beveled edge, applied as a coil with join down one side.Composite mosaic pattern formed from polygonal sections of a composite cane in a colorless ground with a yellow spiral surrounding two small rings, one in blue, the other in white, and central dot in blue; interspersed with this cane are a number of irregular segments in blue with a central white stripe, and around the side and rim others in streaky yellow; the base ring is yellow streaked with blue and white threads.Intact; some bubbles; dulling, some patches of deep pitting, slight reddish brown soil encrustation, and faint weathering. Museum: Metropolitan Museum of Art, New York, USA.