Cool Victorian Trombone link chain, all links hallmarked.
T - Bar at one end, dog clip at the other. 
Weighs - 47.7g
Measures - just under 15" long - I an ask my jeweller to add a link to the chain to get it a wee bit bigger. Just ask (will cost £50)
Long links 30mm long and 8mm wide.
 
The snake is a fun Pools of Light domed crystal with snake frame, their two heads  peeping over the top. They are made from silver plate.
 
Snake weighs - 30.5g and is 40mm in diameter