Glass ribbed bowl end of 1st century B.C.-mid 1st century A.D. Roman Translucent pale blue green.Vertical rounded rim; plain band around top of sides, tapering downwards, then bulging outward before curving in sharply to slightly concave bottom.On interior, two concentric grooves around bottom and small, broader circle at center; on exterior, seventy-six slightly slanting ribs of varying length and width, with tops ground off, arranged around bulging middle section of body.Intact; a few pinprick bubbles; some pitting, dulling, and iridescent weathering on exterior, most of interior covered with creamy weathering.Rotary grinding marks on interior and plain band around top of sides on exterior.. Glass ribbed bowl 245733