The International Silver Co. Prelude Weighted Reinforced N212 mark is found on silver items, often candlesticks or hollowware, produced by International Silver Company in their popular Prelude pattern. The term “Sterling Weighted Reinforced” indicates that the piece has a sterling silver outer shell with a weighted core, typically filled with resin or other materials for stability. The number “N212” serves as a catalog or model reference used to identify the specific form or size within the Prelude line. This mark confirms the piece's construction and helps collectors accurately catalog and date it within International Silver’s production history.