Silver-Plated or Sterling Glass-Bottom Wine Bottle Coaster

This is a circular wine bottle coaster featuring a polished metal rim and a clear glass inset base. The metal rim, likely made of silver-plated brass or sterling silver, exhibits a classic beaded or 'gadroon' style border along both the top inner edge and the bottom outer circumference. This double-beaded detail is a hallmark of traditional English or American silver design, common in the late 19th to mid-20th centuries. The glass base is designed to catch condensation or drips, preventing damage to tabletop surfaces. The metal displays a significant amount of tarnish and oxidation, particularly along the lower collar and within the crevices of the beaded ornamentation, suggesting age and a period of disuse. There are visible surface scratches and 'swirl' marks on the glass bottom, consistent with regular use and the movement of bottles being placed upon it. No maker's marks are immediately visible from this top-down perspective, but such marks are typically stamped on the outer edge or on the underside of the metal lip. The craftsmanship reflects a sturdy, utilitarian construction intended for formal dining settings. The overall patina and design aesthetic suggest a vintage piece, likely dating from the 1940s to the 1960s.