Art Deco opal opalescent hand blown glass bead necklace

Graduating size glass beads are 3/8" at the back with the largest being 3/4 of an inch. The beads are strung with brass findings and measure 18 inches in length. They are predominately blue, but when places again white flesh, also show off a pink cast. Our closeup photos revealed some spots of verdigris on the brass, which brushed right off. Circa 1890-20.