Glass ribbed bowl
Translucent blue green.
Vertical rim with angular top edge; plain, vertical band around top of sides, then bulging outward before curving in sharply to slightly concave bottom.
On interior, three fine concentric grooves around outer edge of bottom and small, broader circle at center; on exterior, seventy-six vertical or slightly slanting ribs of slightly varying length, width, and thickness, with tops ground off, arranged around bulging middle section of body.
Intact; pinprick bubbles; pitting, dulling, and iridescence with small patches of creamy weathering.
Rotary grinding marks on plain band around top of sides and on interior.
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