Dragons Breath Fire Opal Art Glass Sterling Silver Large Button Earrings

Vintage Dragons Breath Opal Art Glass Sterling Silver Pierced Post Button Earrings.  Fire made and hand created very collectible art glass with gold foil know as dragons breath fire opal.  This one is blue, green, yellow and gold colors mainly with some flashes of pinks and oranges. Hallmarked 925 as well as a makers mark that I can’t quite decipher.  Close ups of markings in photos.  26mm in diameter.