Really hard to find early Victorian 15 carat yellow gold guard chain with snake head clasp.
The fancy gold link chain formed from pierced diamond shaped links interspersed with fancy double link chain effect. 
The snake with tiny ruby eyes and a turquoise accent on his crown, along with swirling gold chasing. 
Fantastic investment piece
15 carat gold, turquoise
Clasp measures - 24.2 mm x 8.3mm
Diamond shaped links measure - 26mm x 4.9mm
Double link Chain in between the diamond links - 29mm long x 3.2mm wide 
English circa 1830 - 40
Just under 53” long 
Excellent condition 
41.5g weight