Glass ribbed bowl
Not on view
Colorless
Plain rim with beveled edge; sides curving in downwards to slightly concave bottom.
On interior, two concentric grooves around edge of bottom and small circle at center; on exterior, fifty slanting ribs of irregular length and thickness, with tops ground off.
Intact, except for small weathered chip in rim; many pinprick bubbles; pitting, dulling, and iridescent weathering.
Rotary grinding marks on interior and on band around top of exterior.
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