Thin Curb 9k Gold Chain Necklace 45.5cm / 17.9" Vintage c1980.
The gold mark can be found to the clasp, this simply reads '9k'. Good secure clasp with a good spring.
Length 45.5 cm or 17.9 inches.
Width of chain 0.1 cm.
Weight 0.8 grams or 0.5 penny weight.