Antique 900 Silver Handmade Filigree Earrings With Ruby Red Cabochons

Rare and unique antique / vintage filigree earrings. Handmade. Stamped 900 (an old mark for 90% silver purity, which is very close to 925 sterling silver). Also has a makers mark MA. With red ruby color stones cut as cabochons. Not sure what they are. 2 cm in diameter. Clip on style, suitable for pierced and non-pierced ears. The clipping parts on the back are made of yellow tone metal, possibly solid brass.