Transparent blue/green ("Seafoam" or "Forest") non-lead glass; mold-blown. Tumbler with wide lipless fire polished circular rim, body swells slightly then tapers to narrow thick solid circular foot, walls are decorated by four large ovoid indentations beginning approximately 1/4 distance from the rim and extending to base, impressions slightly flatten the sides squaring off the walls; slightly concave base, mold marks, no pontil; unsigned (may have had a paper label).