Vintage Etruscan Brooch Brass Natural Pearl Amber Glass Cabochon

Unique brass & glass brooch. Deep warm golden brass. Green oxidation around the sawtooth bezel setting. Natural pearls on each side. Center stone dirty. I just couldn't clean it without removing patina on the brass. PLEASE enlarge all photos as they're an intergral part of my items' description. Early 1900's. All my items for sale come from a non smoking home. Thanks for looking :-)