Coro Porcelain Blue Rose Pin Brooch

Blue porcelain flower with dabs of gold on the petals. The leaf is green enamel. There is no plate loss, there is some enamel loss on the leaf and a tiny chip on one of the petals and some glue showing where one of the flowers was attached when it was made on the back around the edge. It is marked Coro in script on the pin back. It measures 3 3/4" x 2 1/2".