Handmade Enamel on Copper Decorative Plate Abstract with Glass Details Vintage

Vintage enamel on copper decorative plate with glass detailing to center. Charming abstract piece. Measures approx. 5 5/8" in diameter. Handmade by a student and/or amateur artisan. Plate is vintage and has design flaws and damage. Form is imperfect. Plate is very wobbly and not a perfect circular form. Center design done with a glass resin or glass detailing, has one raised clear glass chunk protuding. Doubtful that this was intentional. Finish has chipping throughout, most notably to back. Several spots where copper clearly shows through. Has surface scratches. Unsigned and origin unknown.