Sterling Silver and Cut Glass Starburst Coaster

This is a vintage circular drink coaster featuring a prominent sterling silver rim and a molded or cut glass base. The silver rim is finished with a classic beaded border decoration along the interior edge, exhibiting a deep, dark patina consistent with age and oxidation of silver. The glass insert features a sunburst or starburst star pattern on the underside, which provides traction for glassware while adding aesthetic interest. The item appears to be of American origin, likely dating from the early to mid-20th century, a period when such barware was a staple of elegant domestic service. In terms of condition, the silver shows significant tarnishing and minor surface scratches, but the structure remains sound without visible dents. The glass shows no immediate signs of chips or cracks from this angle. While makers' marks are likely located on the underside or outer edge of the silver rim, they are not visible in the current view. The combination of materials suggests a quality of craftsmanship intended for a formal setting. The heavy oxidation may conceal a 'Sterling' or brand stamp, which would further clarify its provenance.