Large order 800 Silver Filagree Vermeil Butterfly Pin / Brooch

Large Butterfly Pin
Plique A Jour 800 Silver Vermeil Butterfly Brooch Vintage
Marked order 800 and something else I can't make out.
This brooch is Gold vermeil over silver filigree design with a two tone finish.
It is large measures approx. 2 5/16" x 1" 1/2.
Classic Victorian C clasp
The Brooch / Pin is in great condition for its age.