Check the listing for details. SHERIDAN Silver Plate/ Ceramic Tile American BIRDS Drink Coasters Barware. Made in United States. Listed at 10.00 USD. The SHERIDAN Silver Plate & Ceramic Tile American Birds Drink Coasters are a stylish and elegant addition to any barware collection. Made by Sheridan Silver, these mid-century modern coasters feature a beautiful bird pattern Probably crafted from sterling silver (.925) and ceramic tiles. The post-1940 design adds a unique and vintage touch to your home decor while also serving a practical purpose in protecting your surfaces from drink coasters. Perfect for adding a touch of sophistication to any drinkware setting. Please note I am not hundred percent sure if this is sterling silver or not there are no markings Also, please note for the split crack in the metal wing. No tracks in the birds are the porcelain as seen in the picture.