Glass ribbed bowl
Translucent blue green.
Plain rounded rim; sides curving in to slightly concave bottom.
On exterior, fifteen prominent, almost vertical ribs with angular tops and tapering towards bottom, almost touching at center, with vertical tooling indents flanking some of ribs.
Intact; a few pinprick bubbles; dulling, slight pitting, and very faint weathering.
Rotary grinding marks on interior.
Greenish-blue bowl with heavy ribs.
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