9k Gold Chain Link Necklace 41.5cm / 16.3" Vintage c1980.
The gold mark can be found to the link adjacent to the clasp, Sheffield assay office but there is no date letter. Good secure bolt ring clasp with a good spring.
Length 41.5 cm or 16.3 inches.
Width of chain 0.2 cm.
Weight 1.5 grams or 0.9 penny weight.