Vintage Gold plated floral brooch

This signed piece is by Marvella I have not found another piece like this on the Internet yet This brooch seems to be in very good condition. The company was founded in about 1911 Before World War II most of their jewelry was a metal that was gold plated & topped with enamel, Different types of beads were used, rhinestones Were common as spacers and of course their simulated pearls They went by a lot of different names over the years and had a copyright symbol after Marvella starting in 1955. Then had several name changes again. J6