What is Sterling Silver . This happens during the production process. The main reason is that the module is too small for stamping 925 or 990.
Sterling Silver 925 Lobster Clasp Clip 10mm With 4mm Jump Ring ST12 X 2 PCS
Sterling Silver Double Lobster Clasp Safety Chain Extenders All Soldered 5 Sizes
1pc 925 Sterling Silver Oval Lobster Clasp Connector for Bracelet Necklace DIY
925 Sterling Silver Trigger Lobster Clasp Catch Bracelet Necklace 9mm to 16.mm
Sterling Silver Plain Brooch Pinback w/ 3 Holes Safety Pin Back Jewelry Findings
Sterling 925 Silver Strong Lobster Claw Carabiner Trigger Clasps Silver Findings
