Deliciously slinky pieced link guard chain with a hanging facetted dog clip. 
The links on this one are pierced with a keyhole shaped design, which I thought was cool, and the chain slides through your hands like liquid. 
It can be worn doubled or tripled at the neck, or probably 45 other ways with a bit of imagination and some findings. 
Tests as 9ct gold (pale yellow in colour) 
Weight approx 20.57g 
Length approx 76 inches 
Width approx 2.2mm 
Very good antique condition - one link has a little section missing as pointed out in photos.