Glass jar
Translucent olive green.
Everted rim with beveled lip; funnel-shaped neck with irregular tooling marks in side; narrow, horizontal shoulder with projecting bulge around edge; bulbous body; pushed-in bottom with circular pontil mark at center.
Body decorated with 22 vertical ribs, extending from bulge around top of body to bottom, made by dipping the paraison into a mold, then withdrawing it, and inflating.
Intact; some pinprick and large bubbles, with a few glassy and black inclusions; patches of faint dulling and iridescent weathering.
The extreme clarity and good state of preservation of the glass is unusual but is not totally unknown among Roman glass vessels.