Retro "Flash" Modernist Necklace

Nice costume jewelry piece.  A retro hammered metal pendant necklace with black stones.  The metal tag identifies it as a "Flash" necklace.  There is a Flash jewelry company in Australia started by Nina Gordon and this may be one of their necklaces.  It has a multi-rope strand with beaten metal accent pieces and a triple layer beaten metal pendant with two having black beads.  The necklace is 20 inches long from end to end with the pendant measuring 4 1/2 inches.