Sterling Silver Curb Chain Necklace 40.2cm / 15.8" Vintage c1980.
The silver mark can be found to the lin adjacent to the clasp, this simply reads '.925' for sterling. Good secure bolt ring clasp with a good spring.
Length 40.2 cm or 15.8 inches.
Width of chain 0.1 cm.
Weight 1.6 grams or 1.0 penny weight.