A really striking but delicate chain, set with antique guilloche enamel bars at station points on steely grey and white. 
A lovely wearable length, perfect for over sweaters in the winter on on bare skin in the summer. 
Tested as 9ct gold 
Weight approx 4.53g 
Length approx 20 inches 
Bars measure approx 18mm x 2mm
Excellent antique condition - bolt ring clasp is a vintage replacement.