Siena Salt & Pepper Shaker Set Our Siena glass and pewter salt and pepper shaker set is a shapely addition to a table, with elegant, engravable bases and removable tops. Each is stamped with hallmarks representing our workshop, our company, the tin content of our alloy and the region of Italy where our pieces are made. Care Instructions MATCH flatware and ceramic dinnerware are dishwasher safe. Use the lowest heat setting, for washing and drying cycles.Allow dinnerware to cool before handling. Mugs, stemware and barware must be washed by hand. Cleaning your pewter: Pewter requires almost no maintenance.To clean your pewter, hand wash in warm water. Dry the pewter completely, as water drops will cause spots. Style Number:792.0