Hello Ladies and Gentlemen. My name is Lola. I've recently inherited some jewelry. I was very lost when trying to figure out the origin of this brooch. The brooch is crafted in silver over gold and comprised of old cut diamonds. The marks are a little indistinct even under strong magnification. On “C” clasp there are few stamps or marks, which I do not recognize. Those looks like “A” with dot below, another “A” and ...(?).On needle there are also few marks. But I’ve no idea. I’ll be grateful for any help You can provide. Thank You in advance for your attention to this matter. Yours sincerely, Lola