This shiny sterling necklace is an 18 inch long, 3 mm wide, flat, snake chain. The pendant is a triangular double framed, 1 1/4 inch wide abalone shell with several opalescent colors. The back of the triangle has a cut off, engraved, "ALPH MEXICO". I'm sure the sterling stamp was cut off as well. 925 stamped on both chain clasp ovals. The bracelet is a bit over 8 inches and is 3 1/2 mm wide. I attached an abalone silver framed fish on the end of the lobster claw clasp. All four of these pieces are vintage, but as shiny as any brand new silver.