Vintage jet black double strand glass bead necklace

Awesome vintage double strand set of shiny jet back faceted beads. These are older, most likely from the 1950's. Very cold to the touch, heavy, and most likely a quality Czech glass. Large center beads graduating to smaller sizes on the sides. Beads are seperated with tiny glass spacer beads. The pinch and slide clasp is made of brass with a delicate filigree and flower design. Truely quality all the way! Measures 16 1/2" from clasp to clasp. Largest beads are 1/2" wide!