Vintage Taxco Turquoise Pendant Sterling Silver 18” Box Chain from Italy

This Taxco pendant is turquoise surrounded by sterling silver. Traditional Taxco marking on back. The pendant is a bit over 1” in height, as shown. I buffed slightly, but did not polish. Box chain from Italy, also vintage, matches the pendant size very well. I tried to show chain hallmarks, but it is difficult to see. Questions and offers welcome. We are a smoke free home. Thank you for your time.