Screw on earings

I believe these to be made of or with enamel paint. It's a pair with the Wright outfit can be worn today. I was lucky enough to get padded slip on to go over the back but you can see the wear from use. There is something written on back but need to up date glasses I have also found a pair almost the some in colour & enamel paint design slightly different they are by a company called Trifari. I always love it when I find some new information.