Glass cylindrical beaker late 1st century B.C.-early 1st century A.D. Roman Translucent deep turquoise blue.Plain, vertical rim; vertical but slightly convex sides, with rounded edge to flat bottom.On exterior, immediately below rim a raised horizontal line flanked by a groove above and below, another raised horizontal line flanked by two grooves at bottom of side; and a broader raised concentric circle flanked by two grooves on bottom .Intact; pinprick bubbles; dulling, deep pitting, and patches of iridescence and creamy brown weathering.Rotary grinding marks on exterior and interior.These cups and bowls represent the class of brightly colored translucent wares that dominated the repertoire of Roman cast glass until they were superseded by vessels made in colorless glass. Unlike mosaic glass, which was made primarily in the Syro-Palestinian region, most translucent monochrome vessels were probably made in Italian workshops and are found mainly in archaeological sites in Italy and the