Mosaic gold-glass hemispherical bowl early 2nd century B.C. Greek Translucent turquoise blue, translucent cobalt blue, translucent purple, opaque white, opaque yellow, and colorless sandwich gold glass.Vertical rim with rounded edge; convex side, tapering downward; convex bottom.Composite mosaic pattern formed from small polygonal sections of a single cane in a turquoise blue ground with a yellow spiral, appearing green, interspersed with square segments of four different canes; the first in cobalt blue with a central white stripe; the second in purple witrh a central white stripe; the third in solid semi-opaque turquoise blue, and the fourth in colorless glass enclosing gold foil; a purple cane wound spirally with a fine double thread in white is attached as a rim.Broken and repaired, with several large losses, and two small weathered holes in side below rim; pitting, dulling, and iridescent weathering.It was not until the late third century B.C. that mosaic glass vessels began to be