Glass ribbed cup
Not on view
Colorless with pale greenish tinge.
Knocked-off, uneven rim; slightly bulging collar below rim; ovoid body, tapering downwards; thick, pushed-in bottom.
On body, eighteen projecting vertical ribs of differing lengths and shapes, two joined at bottom.
Intact, except for one small weathered chip in rim and internal crack in body; pinprick bubbles; pitting, dulling, creamy brown weathering, and iridescence.