VINTAGE FLAPPER ART DECO CRYSTAL RHINESTONE BROOCH

Vintage flapper Art Deco brooch. This is signed on the back, but I can't make out the name. Beautifully painted face with a metallic beauty mark on the left cheek. The face feels like ceramic or a similar material. Crystals or rhinestones make up the head piece and one row drapes under the chin. The 2 circles on the sides of the face are outlined in a crystal/rhinestone row. They are silver circles that appear to be painted. I'm not sure whether a larger crystal stone was there and has been lost over time. The 2 pieces on top of the head are a little loose - I think the weight of the stones made the backing material a little flexible. I think they will stay put as long as they are left alone. There may have been a stone attached to the top of the head and is missing. There is some residue on the 2 stones closest to the head. There are some marks on the face. I don't know whether they can be cleaned. See pictures for clarification of all descriptions. In fair preowned condition. 3.25" Long x 2.25" Wide I am decluttering my late grandmother's collection.