We love a mariner chain, don't we? 
Sturdy, a little bit edgy, a bit different to the norm. 
This vintage chain is a true rose gold (though the bolt ring clasp is more on the yellow side) 
Circa 1970 
Tested as 9ct gold 
Weight approx 6.73g
Link Width approx 2.5mm
Length approx 22 inches 
Excellent vintage condition