Determining if old silverware is genuine sterling silver involves a few straightforward examination methods. The most reliable indicator is the presence of specific hallmarks or stamps on the pieces. Look carefully on the back of the handle or in an inconspicuous spot for markings such as "Sterling," "STER," or the number "925." These stamps guarantee that the item is made of sterling silver, which is an alloy containing 92.5% pure silver. Conversely, markings like "EPNS" (Electroplated Nickel Silver), "EP" (Electroplated), "Silver-Plated," "IS" (International Silver), or names of known silver-plate manufacturers such as Rogers Bros or Oneida typically indicate the piece is silver-plated and not solid silver. The absence of any markings is a strong sign that the item is not real silver.
Beyond inspecting for hallmarks, you can perform simple physical tests at home. One effective method is the magnet test. Real silver is not magnetic, so if a strong magnet sticks to your silverware, it is not sterling silver. This usually indicates a base metal like steel or nickel has been coated with a thin layer of silver. While this test can quickly rule out many fakes, a non-magnetic result is not a definitive confirmation, as some other non-magnetic metals can be used in plated flatware.
Another practical test involves using ice. Silver has a very high thermal conductivity, meaning it transfers heat quickly. If you place an ice cube on a piece of sterling silverware and another on a known silver-plated or stainless steel item, you will notice the ice on the real silver melts significantly faster. This occurs because the silver rapidly conducts heat from the ambient air to the ice. While these home-based methods are very useful for initial assessments, for items of significant potential value or if you remain uncertain, seeking a professional appraisal is the most conclusive way to verify authenticity.
