Vintage gold popular tone disk and black resin etched earrings and brooch pin with hummingbirds and flowers

This is a spectacular vintage set of post back earrings and a matching brooch. The brooch measures 2.5 inches from the top of the main disk. There are thin gold tone disks etched with an intricate bird and flower design, set against black resin disks. The pieces are lightweight and comfortable. True works of art from the 1960s that I've never seen anything like before. No makers marks. Perfect condition other than some popular visible glue on the back and one of the original post backs has been replaced with a silver one that looks more contemporary.

(Any props in photos not included in order.)