Sterling Silver Chain Necklace Curb Link 46.1cm / 18.1" Vintage c1980.
The silver mark can be found to the link adjacent to the clasp, this mark simply reads '.925' for sterling. Good secure bolt ring clasp with a good spring.
Length 46.1 cm or 18.1 inches.
Width of chain 0.2 cm or 0.07 inches.
Weight 2.5 grams or 1.56 penny weight.