Earrings are handcut and sanded, for smoothness. 2 different tins are used in these earrings. The circle is riveted with a copper rivet. The same tin is adhered inside the brass dangle.
Earring wires are antique gold-plated brass, 16mm flat fishhook with open loop, 21 gauge.  Each pair come with silicone clear earring backs. 
Earrings have been treated with a museum grade wax to protect and enhance, called Renaissance.
Some of the tins are vintage and have been lovingly used over decades. Therefore, there may be fine scratches or imperfections.