Vintage Black Intaglio Cameo Brooch or Pendant

This is a vintage cameo made of intaglio carved black glass in a heavy gold-tone, chain link metal brooch setting. The glass has a lovely, beveled edging that might not be visible in the pictures. Dates from the 1950s-1960s. Just over 1 1/2 by almost 1 1/4 inches. Pin clasp works. Also has a small loop to hold a chain to wear as a necklace. Excellent condition!