Sterling Rimmed Coasters 2 by Frank M Whiting

The pair fits snugly together for safe storage. See pic with the glass ridge fitting into the sterling rim. 4” od, 3” id, Made by Frank M Whiting. (of Whiting & Davis) Protect your surfaces! I use mine for ring dishes, in the kitchen & bedroom. Don’t be fooled by those silver plated ones - they rust when they get wet!