These humming birds hang from a Museum Reproductions secure gold-plated screwback clip. Also, they measure 2 and 3/8 inches (61mm) and their look is similar to the Pre-Columbian original in New York’s National Museum of the American Indian.
Ours feature a 12mm ( a bit less than 1/2 inch) tube of genuine Onyx and 2 stylized museum gold (matte finished) Hummingbirds hanging from a ring. Hung independently, their motion suggests the ‘movement in place’ of live Hummingbirds.
The lost wax casting method involves making a wax model, investing it in a mold, and then melting the wax out of the mold to form a cavity so a glass replica can be cast.