Glass plate 4th century A.D. or later Roman Translucent blue green.Broad, slightly upturned, tubular rim, folded down and in; side almost horizontal but with solid flange on exterior towards rim; outsplayed tubular foot ring, made by folding; slightly convex bottom with central rounded projecting boss and pontil mark, dome at center on interior.Intact; bubbles, blowing striations, and a few gritty inclusions; some pitting and brilliant iridescent weathering.. Glass plate 248859